Of congruent triangles are congruent) reasons 1. In order to prove parts of a triangle are congruent, you first need to prove that the triangles are congruent to each other. Improve your math knowledge with free questions in proving triangles congruent by sss, sas, asa, and aas and thousands of other math skills.
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Each proof includes the given information, a diagram and a complete set of statements. Congruent triangles proof worksheet author: The following example requires that you use the sas property to prove that a triangle is congruent. This shows that two sides and the included angle are the same in each. Play this game to review geometry. Select a proof from the list below to get started.