Search references for BBC STUDIOS. Phrases containing BBC STUDIOS
See searches and references containing BBC STUDIOS!BBC STUDIOS
British production company
BBC Studios Limited is a British content company. It is a commercial subsidiary of the BBC that was formed in April 2018 through the merger of the BBC's
BBC_Studios
British public service broadcaster
the channel BBC HD. BBC Studios also distributes the 24-hour international news channel BBC News. The station is separate from BBC Studios to maintain
BBC
British content production company
BBC Studios Productions Limited is a British content production company and is BBC Studios' national production division, producing a wide range of programmes
BBC_Studios_Productions
British Broadcasting Corporation department
The BBC Studios Natural History Unit (NHU) is a department of BBC Studios that produces television, radio and online content with a natural history or
BBC Studios Natural History Unit
BBC_Studios_Natural_History_Unit
British television service
from its own studios from 1932, although the start of its regular service of television broadcasts is dated to 2 November 1936. The BBC's domestic television
BBC_Television
Mixed-use complex in West London
until 1953. Intended as stopgaps, the BBC remodelled the former Gaumont Studios at Lime Grove, the Riverside Studios in Hammersmith and the Shepherd's Bush
Television_Centre,_London
British video and music publisher
Limited, trading as BBC Studios Home Entertainment, is a British video and music publisher founded in 2004 following the merger of BBC Video and Video Collection
BBC Studios Home Entertainment
BBC_Studios_Home_Entertainment
television programmes and feature films produced or co-produced by the BBC Studios Natural History Unit since its inception in 1957. It is not intended
BBC Studios Natural History Unit filmography
BBC_Studios_Natural_History_Unit_filmography
1979–2018 commercial subsidiary of the BBC
company merged with BBC Studios on 1 April 2018, to form a new licensing, production, and distribution company under the BBC Studios name. In addition to
BBC_Worldwide
Television channel
BBC Belgium is a Belgian TV-station of BBC Studios with drama and some entertainment. It is a pay television channel which launched in Belgium originally
BBC_Belgium
Brand name and home for the BBC's online service
was due to the BBC's funding being derived primarily from compulsory television licence fees from UK viewers. BBC Studios who exploit BBC brands commercially
BBC_Online
International radio division of the BBC
United Kingdom's television licence fee, limited advertising, profits of BBC Studios, and Foreign, Commonwealth and Development Office (FCDO) funding. From
BBC_World_Service
Television studio provider in the United Kingdom
BBC Studioworks Limited is a commercial subsidiary of the BBC, providing television studios, post production and related services to the market. It works
BBC_Studioworks
American pay television network
Networks purchased BBC Studios' remaining stake in the channel. AMC Networks continues to license the BBC name and branding from BBC Studios as well as some
BBC_America
employed by BBC Television and BBC Radio. Presenters and journalists appear across BBC television and radio, and also contribute to BBC Online. BBC News provides
List of current BBC newsreaders and reporters
List_of_current_BBC_newsreaders_and_reporters
British 24-hour television news channel
BBC News in the UK, which is a free-to-air channel funded by the licence fee, the world feed is a pay television service distributed by BBC Studios and
BBC_News_(British_TV_channel)
TV studios in Hertfordshire, England
The BBC Elstree Centre, sometimes referred to as the BBC Elstree Studios, is a television production facility, currently owned by AXA. The complex is located
BBC_Elstree_Centre
British television production company
in the major role of Rose Tyler on Doctor Who. On 24 September 2021, BBC Studios announced that Bad Wolf would become co-producer of Doctor Who itself
Bad_Wolf_(production_company)
Topics referred to by the same term
(Shenley Road) former film studios used by the BBC This disambiguation page lists articles associated with the title BBC Elstree Studios. If an internal link
BBC_Elstree_Studios
British international television channel
programming, originating from UK and mostly from the BBC. The channel is wholly owned and operated by BBC Studios. The channel began rolling out internationally
BBC_First
News division of the British Broadcasting Corporation
Parliamentary coverage is produced and broadcast from studios in London. Through BBC English Regions, the BBC also has regional centres across England and national
BBC_News
2024 Indian TV series or programme
Jhunjhunwala, Ayush Sharma, Chiranjeevi Bajpai and Riya Poojary. Produced under BBC Studios, it stars Shantanu Maheshwari and Medha Rana. The series premiered on
Ishq_In_The_Air
Brand of natural history television programming distributed by BBC Studios
United Kingdom. BBC Studios is the commercial arm of the public service broadcaster. BBC Earth commercially represents the BBC Studios Natural History
BBC_Earth
Indian romantic drama television series
an Indian Hindi-language romantic drama television series created by BBC Studios India. The series features Ritvik Sahore and Gayatri Bhardwaj. The first
Highway_Love
Broadcasting facility in London, England
Maida Vale Studios is a complex of seven BBC sound studios, of which five are in regular use, in Delaware Road, Maida Vale, west London. It has been used
Maida_Vale_Studios
BBC regional HQ in northwest England
another production centre, BBC Piccadilly Studios in Manchester city centre in 1957 for local programming. The Dickenson Road studios were the original base
BBC_Manchester
Television channel
2017. "BBC Studios lanceert BBC NL" (in Dutch). Broadcast Magazine. 15 April 2025. Retrieved 15 April 2025. "BBC Studios lanceert BBC NL | BBC Benelux"
BBC_NL
Television channel
BBC Nordic is an entertainment and documentary subscription television channel, owned and operated by BBC Studios and launched on 17 April 2023. It replaced
BBC_Nordic
Former film studios located in London
of Lime Grove Studios.[citation needed] Lime Grove Studios was the setting for the fictional current affairs programme The Hour in the BBC drama of the
Lime_Grove_Studios
English-language pay television channel
BBC News is an international English-language pay television channel owned by BBC Global News Ltd. – a subsidiary of BBC Studios – and operated by the
BBC News (international TV channel)
BBC_News_(international_TV_channel)
2026 British television series
same name by J. J. Arcanjo. Crookhaven was produced by BBC Studios Kids & Family for the BBC with support from Northern Ireland Screen. The series was
Crookhaven_(TV_series)
Video on demand service
BBC Player is an authenticated multi-genre subscription video on demand service operated by BBC Studios (formerly BBC Worldwide) for the International
BBC_Player
Australian production company
Ludo Studio announced the production of a Bluey feature film in partnership with BBC Studios and The Walt Disney Company. The project is the studio's first
Ludo_Studio
Television channel
BBC Kids is the international children's brand of BBC Studios, and has been applied to a number of TV services. It draws from the long history of children's
BBC_Kids
British game show
territories, a majority of which being produced by BBC Studios' local divisions. In 2022, BBC Studios signed a licensing deal with John Adams Leisure to
The_1%_Club
British free-to-air children's television channel
"BBC Kids to Launch on Fetch in Australia". TVKIDS. Retrieved 6 April 2021. "BBC Studios Launches Two New FAST Channels for Kids in the U.S. BBC Kids
CBBC
Internet service showing British TV
is a British over-the-top video on demand streaming service owned by BBC Studios which operates in seven countries across Australia, Europe, and North
BritBox
Australian animated preschool television series
Ludo Studio in Queensland. It was commissioned by the Australian Broadcasting Corporation and the British Broadcasting Corporation, with BBC Studios holding
Bluey_(TV_series)
2017 British TV series or programme
detective Helen Weeks. Production and global distribution was handled by BBC Studios. In the Dark consists of two stories of two parts each centring around
In the Dark (British TV series)
In_the_Dark_(British_TV_series)
British channels broadcast internationally
its subsidiary BBC Studios. Some channels are wholly owned by BBC Studios, while others are joint ventures with other broadcasters. BBC Brit – an entertainment
International BBC television channels
International_BBC_television_channels
Fantasy comedy TV series (2019–2026)
Terry Pratchett's 1990 novel. A co-production between Amazon MGM Studios and BBC Studios, the series was directed by Douglas Mackinnon, with Gaiman also
Good_Omens_(TV_series)
2022 film
2022 documentary written and directed by Dan Krauss and produced by BBC Studios Productions about the 2001 anthrax attacks. The Anthrax Attacks is about
The Anthrax Attacks: In the Shadow of 9/11
The_Anthrax_Attacks:_In_the_Shadow_of_9/11
Radio station in Birmingham, England
DAB, digital television, and on the internet via BBC Sounds. It is broadcast from the BBC studios at The Mailbox in Birmingham city centre, and is primarily
BBC_Radio_WM
Footage licensing division of BBC Studios
BBC Motion Gallery is the footage licensing division of BBC Studios. It offers creative professionals access to a collection of stock footage with licensing
BBC_Motion_Gallery
Retrieved 13 February 2012. "BBC Newsline - Meet the Team - Julian Fowler". BBC. Retrieved 27 April 2012. "Dumbarton Studios". BBC. Archived from the original
List_of_BBC_properties
Television and film production company
Ladykillers (1955). The BBC owned and filmed at the Studios for forty years from 1955 until 1995. Since 2000, Ealing Studios has resumed releasing films
Ealing_Studios
UK charity of the BBC
November at 7pm, live from BBC Elstree Studios – Media Centre". bbc.co.uk. 3 November 2020. Retrieved 5 November 2020. "The BBC's Children in Need appeal
Children_in_Need
British film production company
Roots Manoeuvre BBC portal BBC BBC Studios Film4 Productions – British film production company "BBC Documentary Arm Storyville moves under BBC Film remit"
BBC_Film
British children's television network
have been based at the BBC's northern base at studios HQ5 and HQ6 in Dock10 studios at MediaCityUK following the move of the BBC Children's department
CBeebies
British nature documentary television series
(TVNZ), and Spain (MovistarPlus+). That March, it was announced that BBC Studios would team up with Dorling Kindersley to release a tie-in book, the firms'
Blue_Planet_III
2021 soundtrack album by Joff Bush
Publishing on behalf of BBC Worldwide Music Publishing. The soundtrack was released through Demon Music Group, a subdivision of BBC Studios, who hold global
Bluey:_The_Album
1995 live album by Dire Straits
album was recorded on 22 July 1978 at BBC Studios in London, with one track recorded on 19 December 1980. The studio versions of the first six songs were
Live at the BBC (Dire Straits album)
Live_at_the_BBC_(Dire_Straits_album)
Former Canadian television channel
channel was owned by Corus Entertainment (80% & managing partner) and BBC Studios (20%). Alliance Atlantis (AAC) was granted a broadcast licence for a
BBC_Canada
British television drama series (2015–)
"BBC Studios licenses psychological drama Doctor Foster format to Nippon TV". BBC Media Centre. "ABS-CBN to produce PH adaptation of BBC Studios' 'Doctor
Doctor_Foster_(TV_series)
British TV sitcom (2013–2019)
fifth and sixth series were all recorded at Pinewood Studios. The special was broadcast on BBC One on 26 December 2013 and received 9.43m (39.9% of the
Still_Open_All_Hours
2023 British nature documentary television series
documentary series produced by the BBC Studios Natural History Unit in co-production with The Open University, BBC America, ZDF, France Televisions and
Planet_Earth_III
Scottish division of the British Broadcasting Corporation
£188 million, the studio contains three television studios and five radio studios as well as the first HD newsroom used by the BBC. The Pacific Quay building
BBC_Scotland
Documentary subscription television channel
September 2021. "迪士尼退出後「BBC Studios來了」 2024年登有線電視基本頻道". UDN News (in Chinese (Taiwan)). 28 December 2023. Retrieved 30 December 2023. "BBC Earth HD u Hit i HD
BBC Earth (international TV channel)
BBC_Earth_(international_TV_channel)
Australian pay television channel
ownership), the RTL Group (20% ownership) and BBC Worldwide (20% ownership). It is now owned solely by BBC Studios. The channel was first launched in Australia
BBC_UKTV
independently from the BBC-branded channels. Commercially funded BBC Studios and BBC Global News, as well as state-funded BBC World Service operate and
List of BBC television channels and radio stations
List_of_BBC_television_channels_and_radio_stations
BBC Studios. Retrieved 24 June 2025. "Village of the Angels | Doctor Who". BBC Studios. Retrieved 24 June 2025. "The Well | Doctor Who". BBC Studios.
List_of_Doctor_Who_writers
Division for local and regional services
centres also had network radio studios (BBC Birmingham, for instance, producing The Archers) plus a small television news studio, the latter to enable local
BBC_English_Regions
Residential district in Paddington, London
and Edwardian blocks of mansion flats. The area is home to the BBC Maida Vale Studios. The name of the area is derived from a pub and an Italian battle
Maida_Vale
BBC Television drama series by Mira Nair
The Times of India In May 2017, Charlotte Moore, head of content for BBC Studios, announced for an adaptation of Vikram Seth's 1993 novel A Suitable Boy
A_Suitable_Boy_(TV_series)
2019 Scottish TV series
the first drama commission of BBC Scotland. Episodes premiered on that channel before being broadcast across the UK on BBC Two. Written and created by Neil
Guilt_(British_TV_series)
Guild Nikkatsu Roman Porno Toho Malay Film Productions CJ Entertainment BBC Studios Natural History Unit British and Dominions British Lion Films British
Lists_of_films_by_studio
Film and TV production facility in England
facilities historically referred to as Elstree Studios, the Shenley Road studios originally opened in 1926. The studio complex has passed through many owners
Elstree Studios (Shenley Road)
Elstree_Studios_(Shenley_Road)
British North American streaming service
BBC Select is a streaming service in North America launched in February 2021. The service is owned by the BBC's commercial arm, BBC Studios, and features
BBC Select (streaming service)
BBC_Select_(streaming_service)
UK television series
Event, awarded to Springwatch 2020 (BBC Studios Natural History Unit and The Open University) Lambing Live "BBC Studios - The Natural History Unit - Springwatch"
Springwatch
British TV series
costume drama series co-produced by BBC Studios and Masterpiece. The Paradise premiered in the United Kingdom on BBC One on 25 September 2012 and premiered
The_Paradise_(TV_series)
British media company
Studios and ITVX. On 30 January 2025, Reuters reported that RedBird IMI were in early-stage talks with ITV plc to merge the All3Media and ITV Studios
All3Media
Division and service of the British Broadcasting Corporation
the globe, through its BBC Radio International business, which is part of BBC Studios. Programmes regularly syndicated by BBC Radio International include:
BBC_Radio
British broadcaster
BBC London is the BBC English Region producing local radio, television, teletext and online services in London, Surrey and parts of the surrounding areas
BBC_London
2025 British TV series or programme
Kingdom is a 2025 British nature documentary series produced by the BBC Studios Natural History Unit and narrated by David Attenborough. The six-part
Kingdom_(2025_TV_series)
British mystery crime drama television series (2010–2017)
take advantage of the BBC's planned Cardiff Bay "drama village". Production of the first two series was based at Upper Boat Studios, where Doctor Who had
Sherlock_(TV_series)
Indian web series streaming on Disney+ Hotstar
Hotstar would be adapting BBC Studios's critically acclaimed series Doctor Foster for Indian audiences in association with BBC Studios India with Tigmanshu
Out of Love (Indian TV series)
Out_of_Love_(Indian_TV_series)
British television executive
producer on HBO's prequel to Game of Thrones and head of development at BBC Studios. He was named a Broadcast magazine Hot Shot in 2014 and his shows have
James Farrell (television producer)
James_Farrell_(television_producer)
2019 British TV series or programme
from space missions. The series was created as a partnership between BBC Studios and the Open University. A 288-page hardback book written by Brian Cox
The_Planets_(2019_TV_series)
British television series
for BritBox, Kate Woods executive producer for BBC Studios and Sue Deeks as executive producer for the BBC. Lynley premiered on 4 September 2025 on BritBox
Lynley_(TV_series)
British Television series
produced by BBC Studios Kids & Family Productions and distributed worldwide by Sinking Ship Entertainment. The series was launched on BBC iPlayer on 21
Phoenix_Rise_(TV_series)
International television channel
BBC Lifestyle is an international television channel wholly owned by BBC Studios. The channel provides six programming strands: Food, Home & Design, Fashion
BBC_Lifestyle
British political thriller TV series
Laia Costa, and Sophie Rundle in lead roles. The series is produced by BBC Studios and World Productions for Alibi. It began airing on 28 February 2023
The Diplomat (British TV series)
The_Diplomat_(British_TV_series)
the American film studio Walt Disney Studios, one of the Walt Disney Company's divisions and one of the "Big Five" major film studios. The list includes
List of Walt Disney Studios films (2020–2029)
List_of_Walt_Disney_Studios_films_(2020–2029)
BBC Shop is an online retailer owned by BBC Studios, the commercial arm of the BBC and operating in the US & Canada. It sells BBC Studios published products
BBC_Shop
Former television studio complex and ITV headquarters on the South Bank, London, England
The London Studios (also known as The South Bank Studios, The London Television Centre, ITV Tower, Kent House and LWT Tower) in Lambeth, Central London
The_London_Studios
British television series
constructed set at BBC Television Centre (primarily in the largest studio, TC1) until its closure in 2013, with the show moving to Elstree Studios' George Lucas
Strictly_Come_Dancing
British science fiction TV series (1963–2025)
2016–2017, and BBC Studios Productions alone from 2018–2022, after the BBC's commercial production and BBC Worldwide were repurposed into BBC Studios in 2018
Doctor_Who
BBC Region in west of England
BBC Regional Production Studios". TV Studio History. Retrieved 13 March 2025. BBC Local News at BBC Online BBC Points West at BBC Online 51°27′40″N 2°36′29″W
BBC_West
International high-definition television channel
high-definition television channel owned by BBC Studios. In many countries the channel has been replaced by other BBC Studios operations. At present, the channel
BBC_HD_(international)
Governing board of the British Broadcasting Corporation
The BBC Board is the governing board of the British Broadcasting Corporation. The board replaced the BBC Trust in April 2017. The chair and four non-executive
BBC_Board
Indian crime drama television series
attaching Devgn to star in the lead role with Applause Entertainment and BBC Studios India producing. In April 2021, reports came in stating that Ajay Devgn
Rudra:_The_Edge_of_Darkness
British TV series (2023–2024)
actors reprising their roles. The series is produced by Bad Wolf and BBC Studios, and executive produced by Russell T Davies, Jane Tranter, Julie Gardner
Tales_of_the_TARDIS
British television soap opera (2000–2024)
the BBC ordered it as a continuing soap opera. Doctors was filmed at the Pebble Mill Studios until 2004; production then relocated to the BBC Drama
Doctors_(2000_TV_series)
BBC television comedy series
by BBC Wales. Three further episodes were announced as a joint production by BBC Wales and BBC Studios in 2023. The first episode premiered on BBC Two
Mammoth_(TV_series)
English YouTuber (born 1991)
Retrieved 29 April 2021. "BBC Studios partners with Joe Sugg's new production company - Final Straw Productions". www.bbc.co.uk. Retrieved 12 January
Joe_Sugg
Television studio complex in Manchester, England
reopened in 2018. The studios are the oldest operating purpose-built television studios in the United Kingdom, pre-dating BBC Television Centre by four
Granada_Studios
2023 British TV series or programme
miniseries presented by Chris Packham, produced by BBC Studios with NOVA and GBH Boston for the BBC and PBS, in partnership with the Open University. It
Earth_(2023_TV_series)
Interactive television service
BBC Red Button is a brand used for digital interactive television services provided by the BBC, and broadcast in the United Kingdom. The services replaced
BBC_Red_Button
List of programs broadcast by CBBC
Tuchow, Ryan. "BBC Studios Children's & Education and France Télévisions commission Vanishing Point". Retrieved 28 December 2025. "BBC Studios Kids & Family
List of BBC children's television programmes
List_of_BBC_children's_television_programmes
2022 family television series
Westminster Abbey. In 2023 Another Christmas special was announced and BBC Studios Kids & Family joined in on production. The series features original music
Dodger_(TV_series)
BBC STUDIOS
BBC STUDIOS
Boy/Male
Indian, Telugu
Caste of Bc; Diamond; Great Parson
Boy/Male
Hebrew
Help. 5th century BC Jewish priest and scholar Ezra wrote three biblical books and began...
Boy/Male
Scottish
Bank.
Surname or Lastname
English
English : habitational name from a place in Norfolk named Beccles, from Old English bec(e), bæce ‘stream’ + lǣs ‘meadow’.
Boy/Male
Hebrew Biblical
Strong; carried; brave. Amos was an 8th century B.C. Old Testament prophet.
Girl/Female
American, Australian, British, Christian, Danish, Dutch, English, French, German, Hebrew, Irish, Jamaican, Latin, Swedish
Most Bbb Name; Coolest Name Ever; Pet Form of Mary; The Perfect One; Bitterness; Sorrow; Star of the Sea; Beloved
Surname or Lastname
English
English : according to Reaney and Wilson, this is from a Middle English personal name derived from an unattested Old English one, Tæbba. The surname is found mainly in Cornwall, so it could in fact be from a Cornish personal name.
Surname or Lastname
English
English : unexplained.Jewish (Ashkenazic) : variant spelling of Schum.Chinese : (Pinyin Cen) this surname was derived from an area so named during the Zhou dynasty (1122–221 bc).
Girl/Female
Hebrew American English French
God has judged, or God is judge. The Old Testament Daniel was a 6th century BC prophet who...
Girl/Female
Hebrew American English Spanish
God has judged, or God is judge. The Old Testament Daniel was a 6th century BC prophet who...
Boy/Male
Hindu, Indian
Ruler; Caste of Bc
Boy/Male
Latin
General from the 3rd century B.C. who crossed the Alps with 30,000 men and 38 elephants during...
Girl/Female
Greek
Welcome. Famous bearer: Aspasia was a 5th century BC mistress of the Athenian statesman...
Boy/Male
American, British, English
Male Deer
Girl/Female
Hebrew
God has judged, or God is judge. The Old Testament Daniel was a 6th century BC prophet who...
Female
English
Latin form of Greek Kleopatra, CLEOPATRA means "glory of the father." Cleopatra VII reigned as Queen of Egypt from 51-30 B.C. She was born in 69 B.C. in Alexandria, Egypt and is believed to have been black African.Â
Boy/Male
Irish
Small.
Boy/Male
Hebrew
Strong; carried; brave. Amos was an 8th century B.C. Old Testament prophet.
Girl/Female
Hebrew American
God has judged, or God is judge. The Old Testament Daniel was a 6th century BC prophet who...
Boy/Male
Hindu, Indian
Caste of Bc; Royalty; Great Person; Rural; Dominate Caste in South India
BBC STUDIOS
BBC STUDIOS
Surname or Lastname
English
English : nickname from Middle English freil, frel(i)e ‘frail’, ‘weak’.Possibly an Americanized spelling of German Friel 2.
Boy/Male
Christian & English(British/American/Australian)
Town of Victory
Girl/Female
Bengali, Hindu, Indian
God of Travel; Daughter of the Goddess; Beloved; Worshiper of Lord Shiva
Girl/Female
Hindu, Indian, Marathi, Traditional
Goddess Durga
Girl/Female
Muslim
Oasis in northwest arabia
Girl/Female
Bengali, Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi, Sindhi
Chief of the Goddesses; Goddess Durga
Boy/Male
Hindu
Fame
Boy/Male
African, American, Anglo, Australian, British, English, Jamaican, Scottish
One with a Strong Arm; Strong Fighter; Strong-armed
Surname or Lastname
English
English : from Middle English angel ‘angel’ (from Latin angelus), probably applied as a nickname for someone of angelic temperament or appearance or for someone who played the part of an angel in a pageant. As a North American surname it may also be an Americanized form of a cognate European surname, as for example Italian Angelo, Rumanian Anghel, Czech Anděl, or Hungarian Angyal.German : ethnic name for a member of a Germanic people on the Jutland peninsula; members of this tribe invaded eastern and northern Britain in the 5th–6th centuries and gave their name to England. See Engel.Slovenian (eastern Slovenia) : from the Latin personal name Angelus.
Boy/Male
French, Indian, Sanskrit
Fat; A Mixed Caste
BBC STUDIOS
BBC STUDIOS
BBC STUDIOS
BBC STUDIOS
BBC STUDIOS
pl.
of Studio
n.
A period of four years, by which the ancient Greeks reckoned time, being the interval from one celebration of the Olympic games to another, beginning with the victory of Cor/bus in the foot race, which took place in the year 776 b.c.; as, the era of the olympiads.
n.
A broad, flatbottomed ferryboat, usually worked by a rope.
n.
A vat or cistern. See 1st Back.
n.
An instrument for the accurate measurement of small differences of height; esp. of the differences in the height of the upper surfaces of two columns of mercury or other fluid, or of the same column at different times. It consists of a telescopic leveling apparatus (d), which slides up or down a perpendicular metallic standard very finely graduated (bb). The telescope is raised or depressed in order to sight the objects or surfaces, and the differences in vertical height are thus shown on the graduated standard.
n.
A ferryboat. See Bac, 1.
a.
At right angles to a given line or surface; as, the line ad is perpendicular to the line bc.