Question

which theorem is not a valid theorem to show that two triangles are congruent? a sas triangle congruence theorem b ssa triangle congruence theorem c asa triangle congruence theorem d aas triangle congruence theorem

Explanation:

The Side - Side - Angle (SSA) is not a valid congruence theorem for triangles because given two sides and a non - included angle, it is possible to construct two non - congruent triangles. In contrast, SAS (Side - Angle - Side), ASA (Angle - Side - Angle), and AAS (Angle - Angle - Side) are valid triangle congruence theorems.

Answer:

B. SSA Triangle Congruence Theorem