We have discussed triangle congruence and in this series, we are going to use the congruence theorems in order to prove that two triangles are congruent. Given Prove Proof We can see that there are two overlapping triangles: triangle and triangle .

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# Geometry

## A Proof of The Trapezoid Angle Theorem

A trapezoid is a quadrilateral whose two sides are parallel. In the figure below, is a trapezoid and is parallel to . In this post, we are going to prove that in a trapezoid, the consecutive angles between a pair of parallel sides are complementary. That is, we are going to prove in the figure above […]

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## The Proof of the Kite Symmetry Theorem

A kite is a quadrilateral with two distinct pairs of congruent sides. The common vertices of its congruent sides are called its ends. In quadrilateral below, the distinct pairs of congruent sides are & and & . The ends are and . Exercise: Locate the ends and the pairs of the distinct pairs of the […]

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