If in triangles ABC and DEF, angle A = angle D = right angle, AB = DE (leg), and BC = EF (hypotenuse), then triangle ABC is congruent to triangle DEF. Proof: The proof of this case again starts by making congruent copies of the triangles side by side so that the congruent legs are shared.
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Answer:
Which angle is congruent to ABC?
If in triangles ABC and DEF, angle A = angle D = right angle, AB = DE (leg), and BC = EF (hypotenuse), then triangle ABC is congruent to triangle DEF. Proof: The proof of this case again starts by making congruent copies of the triangles side by side so that the congruent legs are shared.