Question

What other information do you need inorder to prove the triangles congruent using the SAS Congruence Postulate


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Answer 1

SAS = Side Angle Side

You already have
AC = CA (Common Side)
BC = CD (Given in figure)
You need a common angle: ACB = ACD (The angle in between the 2 sides)

This extra information, would help you prove congruency using SAS.

Answer 2

thank you!!