Synonyms:
triangle, trigon, trilateral
Meaning: a three-sided polygon
Usage examples
One of his ideas concerning the law of the successive distances was based on the inscription of a triangle in a circle.
From the latter it must follow, either that a triangle necessarily exists, or that it is impossible that it should exist.
A scout preceded the marchers, and at sundown camp was formed in a big triangle with the carts as a stockade, the animals tethered or hobbled inside.
It was more than twenty-five feet long; its enormous mouth occupied a third of its body. It was an adult, as could be seen from the six rows of teeth forming an isosceles triangle in its upper jaw.
Here only a small triangle of blue sky could be seen--not a tree, not a bit of earth--and in the small room all those heavy furnishings closed around her, dark red, stuffy, and greasy with London smoke.
So we made a long skirting voyage, turned the point of the cape which was close by, ran up one side of the triangle at our best speed, crossed over the base where it left the higher mountains, and so back to our lake by moonlight.
The definition of a triangle can alone give you a just idea of that figure: the moment you form a triangle in your mind, it is this or that particular triangle and no other, and you cannot avoid giving breadth to its lines and colour to its area.
But this is the same as if they said, that God could bring it about, that it should follow from the nature of a triangle that its three interior angles should not be equal to two right angles; or that from a given cause no effect should follow, which is absurd.