A triangle is a simple closed figure made up of three line segments.

A triangle has six parts or elements, namely: a) Three sides and b) Three angles.

The point of intersection of two adjacent sides of a triangle is called a vertex. A triangle has 3 vertices.

A median of a triangle is the line segment joining a vertex of the triangle to the mid-point of its opposite side. A triangle has three medians.

## Congruent Triangles PDF

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