Triangles - Definition, Properties, Formula

A triangle is a closed shape with 3 angles, 3 sides, and 3 vertices. A triangle with three vertices says P, Q, and R is represented as △PQR. It is also termed a three-sided polygon or trigon. Learn more about triangles, types of triangles, formulas of triangles with Cuemath.

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Triangles - Definition, Properties, Formula

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