Question

Triangle ABC is similar to triangle XYZ by the AA Similarity Postulate.

Also, m∠A = 39° and m∠C = 24°.

What is m∠Y?

Answer 1

`m\angle Y=m\angle B\\\\ m\angle B=180-m\angle A-m\angle C\\ m\angle B=180-39-24\\ m\angle B=117^(\circ) \\ \Downarrow\\ \boxed{m\angle Y=117^(\circ)}`