Two door stops have cross-sections that are right triangles. They both have a 20° angle and the length of the side between the 90° and 20° angles are equal. Are the cross sections congruent?

1 Answer
BeeFree
Nov 16, 2015

Yes, by ASA

Explanation:

Since both cross-sections have a 20 and a 90 degree angle with the same equal side between these two angles, this would satisfy the Angle-Side-Angle (ASA) Theorem for congruent triangles.

Hope that helps

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