If 2 angles of one triangle are congruent to 2 angles of another triangle, then the third angles must be congruent to each other.

Question

If 2 angles of one triangle are congruent to 2 angles of another triangle, then the third angles must be congruent to each other.

True or false?

Answer 1

True.

Since the sum of the interior angles of a triangle are fixed at 180, if two angles are equal, the third one must be equal as well.