What is triangle?

  • (noun): Something approximating the shape of a triangle.
    Example: "The coastline of Chile and Argentina and Brazil forms two legs of a triangle"
    See also — Additional definitions below


A triangle is one of the basic shapes of geometry: a polygon with three corners or vertices and three sides or edges which are line segments. A triangle with vertices A, B, and C is denoted .

Read more about Triangle.

Some articles on triangle:

Afar Triangle
... The Afar Triangle (also called the Afar Depression or the Danakil Depression) is a geological depression that is caused by the Afar Triple Junction which is part of the Great Rift Valley ... The Afar Triangle includes the Danakil Depression and the lowest point in Africa, Lake Asal (155 metres / 509 feet below sea level) ...
Spring Triangle
... The Spring Triangle is an astronomical asterism involving an imaginary triangle drawn upon the celestial sphere, with its defining vertices at Arcturus, Spica, and alternately Denebola or ... This triangle connects the constellations of Bo├Âtes, Virgo, and Leo ...
Concurrent Lines
... In a triangle, four basic types of sets of concurrent lines are altitudes, angle bisectors, medians, and perpendicular bisectors A triangle's altitudes run from each ... Angle bisectors are rays running from each vertex of the triangle and bisecting the associated angle ... Medians connect each vertex of a triangle to the midpoint of the opposite side ...
Triangle, Virginia - Government
... Triangle is represented in the Virginia House of Delegates by L ... Scott Lingamfelter ...
Ghost Ship - Film
2001 The Triangle has the tagline "60 years ago, the Queen of Scots vanished in the Bermuda Triangle ... SS Corona Queen, which has emerged from the Bermuda Triangle after 30 years. 2009 Triangle is psychological horror film about a group of friends on a yachting trip who discover the derelict ocean liner Aeolus ...

More definitions of "triangle":

  • (noun): A percussion instrument consisting of a metal bar bent in the shape of an open triangle.
  • (noun): Any of various triangular drafting instruments used to draw straight lines at specified angles.