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)
Triangeln station, a railway station in Malmö, Sweden Triangular trade Triangular election in France Triangulum (disambiguation) Golden Triangle