- Word History, Word Explorer
|part of speech:
||a geometric plane figure having three sides and three angles.
Do you know how to find the area of a triangle?
||any of various things that resemble such a figure, such as a draftsman's triangle, used in drawing angles, or a musical instrument consisting of a bent metal rod that is struck by another rod, or a three-sided piece of land.
I love to hear the triangle in the marching band.
comes from triangulus
, a Latin word that means "having three angles or corners."