Question

Identify or mark the missing side or angle that would make triangle ABC congruent to triangle PDF by SAS. ​

Answer 1

• Mark the sides BC and DF as congruent

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We are given a side and an adjacent angle and need to identify the missing side or angle for proof by SAS.

SAS is side-angle-side and requires two sides and the included angle to be congruent on both triangles.

The missing bit is the other side of the marked angle B and D:

• sides BC or DF.