Question

A) side-side-side triangle similarity postulate

B) angle-angle triangle similarity postulate
C) angle-side-angle triangle similarity postulate
D) hypotenuse-lag triangle similarity postulate

Answer 1

The question tells you that the 3 corresponding angles are equal.

For similarity you only have to know that 2 corresponding angles are equal.

Answer 2

The answer is B.) Angle-Angle Triangle Similarity Postulate, however the extra pair of congruent angles were unnecessary since the Angle-Angle Similarity Postulate only needs two pairs of angles to be congruent in order to be true.