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Mathematics 20 Online
OpenStudy (ewzeiger77):

Postulate help? Which postulate can be used to prove that the triangles are congruent? https://static.k12.com/eli/bb/343/4_23944/2_15030_6_23950/99096c966048557c059b5bc1ba6beb5aa918efc4/media/7ef4efcd9766f8efd59d56d6b273aba4cda63740/mediaasset_649807_1.gif

OpenStudy (ewzeiger77):

OpenStudy (mathstudent55):

You have the two right angles. Theorem: All right angles are congruent. By the theorem above, the right angles are congruent, so we have a pair of congruent angles.

OpenStudy (mathstudent55):

What else does the figure show you as congruent?

OpenStudy (mathstudent55):

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