Question

If △ABC∼△SRT
△
𝐴
𝐵
𝐶
∼
△
𝑆
𝑅
𝑇
, what is m∠B
𝑚
∠
𝐵
?

Answer 1

Since the vertices are listed in order (A→S, B→R, C→T), angle B corresponds to angle R. Thus m∠B = m∠R.