If triangles △ABC and △SRT are similar, this means that their corresponding angles are congruent and their corresponding sides are in proportion.
Therefore, if the measure of angle A in △ABC is equal to m∠B in △SRT, then m∠B is also the measure of angle A in △ABC.
Thus, m∠B = m∠A.
If △ABC∼△SRT, what is m∠B ?
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