// Workers AI · dad joke modeWhat did the triangle say? It had an angle.

A triangle is a geometric shape with three sides.

Triangle may also refer to:

Mathematics

• Exact triangle, a collection of objects in category theory
• Triangle inequality, Euclid's proposition that the sum of any two sides of a triangle is longer than the third side
• American expression for set square, an object used in engineering and technical drawing, with the aim of providing a straightedge at a right angle or other particular planar angle to a baseline
• The triangle graph in graph theory

Entertainment

Music

• Triangle (musical instrument), in the percussion family
• Tri Angle (record label), in New York and London
• Triangle (band) a Japanese pop group in 1970s
• The Triangles, Australian band

Albums

• Tri-Angle, a 2004 album by TVXQ
• Triangle (The Beau Brummels album), 1967
• Triangle (Perfume album), 2009
• Triangle (Diaura album), 2014
• Triangle, a 2008 album by Mi Lu Bing
• Triangle, a 2011 EP by 10,000 Maniacs

Film

• Triangle Film Corporation, a film studio in the U.S. during the silent era
• The Triangle (film), a 2001 made-for-TV thriller
• Triangle (2007 film), a Hong Kong crime-thriller
• Triangle (2009 British film), a British-Australian psychological thriller
• Triangle (2009 South Korean film), a South Korean-Japanese comedy
• The Triangle, a 1953 film starring Douglas Fairbanks Jr.

Television

• The Triangle (miniseries), a 2005 Sci-Fi Channel series
• Triangle (1981 TV series), a 1980s BBC soap opera
• Triangle (2014 TV series), a 2014 MBC Korean drama
• "Triangle" (Buffy the Vampire Slayer), 2001
• "Triangle" (President Curtis), 2026
• "Triangle" (The X-Files), 1998
• "The Triangle" (The Amazing World of Gumball), 2015
• "The Triangle" (The Golden Girls), 1985
• "Triangle", a three part episode of Crown Court
• "Triangles", an episode of Private Practice

Games

• Slapball, a baseball street variant
• Triangle offense, an offensive strategy used in basketball

Places

• Bermuda Triangle, area of the North Atlantic between Bermuda, Florida, and Puerto Rico
• Le Triangle, a residential district in Montreal
• Triangle, Newfoundland and Labrador, Canada
• Triangle (Israel), a concentration of Israeli Arab towns
• Triangle Region (Denmark) (Trekanten), a sub-region on the Jutland Peninsula
• Trianglen, Copenhagen, a large intersection in Copenhagen, Denmark
• Research Triangle, a region of North Carolina, U.S., anchored by Raleigh, Durham, and Chapel Hill
• Rhubarb Triangle, an area of West Yorkshire, England known for the cultivation of forced rhubarb
• Triangle, New York, United States
• Triangle, Virginia, United States
• Triangle, West Yorkshire, a village in Calderdale, England
• Triangle, Zimbabwe

Other uses

• Triangle (chart pattern), in financial technical analysis
• Triangle (novel), a 1983 Star Trek novel
• Triangle (Paris building)
• Triangle (railway), an English term equivalent to a North American Wye rail
• Triangle Pose, a yoga āsana
• Triangle Fraternity, social fraternity for STEM Students
• Triangle Rewards, a loyalty program offered by Canadian Tire
• The Triangle (newspaper), at Drexel University
• The Triangle, Manchester, a building in England
• Triangles (novel), a 2011 novel by Ellen Hopkins
• Trigonodes hyppasia or Triangles, a species of moth
• Weimar Triangle, a regional alliance of France, Germany, and Poland
• Delta (letter), in the Greek alphabet, whose uppercase (Δ) resembles a triangle
• Bansiot (ㅿ), in the Korean alphabet Hangul, which resembles a triangle
• a street circuit near the north coast of Northern Ireland used for the North West 200 motorcycle races

See also

• Triangle Lake (disambiguation)
• Triangle Park (disambiguation)
• All pages with titles containing Triangle
• Triangeln station, a railway station in Malmö, Sweden
• Triangular trade
• Triangular election in France
• Triangulum (disambiguation)
• Golden Triangle