# Chapter 3 - Section 3.1 - Congruent Triangles - Exercises - Page 130: 25

Proof 1: $\overline{AB}$ is congruent to $\overline{CD}$ and $\overline{AD}$ is congruent to $\overline{CB}$ because it is given in question. Proof 2: $\overline{AC}$ is identity Proof 3: $\triangle$ABC ≡ $\triangle$CDA is given in question

#### Work Step by Step

Given: $\overline{AB}$ is congruent to $\overline{CD}$ $\overline{AD}$ is congruent to $\overline{CB}$ To prove: $\triangle$ABC ≡ $\triangle$CDA

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