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triangle

/ˈtɹaɪˌæŋɡəl/noun3 syllables

Triangle means: a three-sided polygon.

Synonyms for triangle9

noun, as in a three-sided polygon

trigon, trilateral

noun, as in a small northern constellation near Perseus between Andromeda and Aries

Triangulum

also used for triangle

threeside, love triangle, menage à trois, bluebottle, wye,

Includes material from Wiktionary, CC BY-SA 4.0.

What does triangle mean?5

noun

1

a three-sided polygon

2

a small northern constellation near Perseus between Andromeda and Aries

3

something approximating the shape of a triangle“the coastline of Chile and Argentina and Brazil forms two legs of a triangle”

4

any of various triangular drafting instruments used to draw straight lines at specified angles

5

a percussion instrument consisting of a metal bar bent in the shape of an open triangle

Definitions from the Open English WordNet, CC BY 4.0.

Triangle in a sentence

  • If a figure has three sides, it's a triangle.Miktsoanit
  • If a triangle has two right angles, it's a square missing one side.AlanF_US
  • If a figure has three sides, it is a triangle.ColinG
  • Important geometric figures, that are triangle, square, rectangle, circle, parallelogram and trapeze.benutzer
  • A triangle has three angles, and a hexagon has six angles.Ooneykcall
  • You should try the triangle-triangle-square combo, it can break the enemy's guard.sabretou
  • If triangles had a god, he would have three sides.Hybrid
  • If triangles made a god, they would give him three sides.Adelpa

Sentences from Tatoeba, CC BY 2.0 FR, credited to their authors.

Forms of triangle

as a noun

plural
triangles