If △ABC∼△SRT, what is m∠B

a=90
c=34

r=56
s=90
t=34

Given that △ABC∼△SRT, we know that the corresponding angles of the triangles are equal. Therefore, m∠B = m∠S.

In triangle SRT, given that s = 90 and t = 34, the sum of the angles in a triangle is 180 degrees. Therefore, m∠S = 180 - s - t = 180 - 90 - 34 = 56 degrees.

Therefore, m∠B = m∠S = 56 degrees.