What additional information do you need to prove ∆ABC ≅ ∆DEF by the SAS Postulate?

A.) ∠CAB ≅ ∠FDE

B.) ∠BCA ≅ ∠EFD

C.) ∠ABC ≅ ∠DEF

A.) ∠CAB ≅ ∠FDE

Explanation:

The triangle SAS postulate state that two triangles that have congruent side-angle-side are congruent triangles. Take notes that the angle must be in between the two congruent sides. The congruent sides of the first triangle are CA = FD and AB=DE. The angle in between CA and AB is ∠A, while the angle between FD and DE is ∠D.

The angle needed will be:

∠A ≅ ∠D

∠CAB ≅ ∠FDE

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