Question

In right triangle ABC, ∠C is a right angle and sin A = sin B. Solve for m∠A.

Answer 1

A triangle's angles all add up to 180 degrees. Since it's stated in the answer that angle C is a right angle, which is 90 degrees, and the other two angles are equal, the other two must be 45 degrees.
The answer is B.

Answer 2

The best and most correct answer among the choices provided by your question is the second choice or letter A. The measures of both angles would be 45 degrees.

If A = B = 45 degrees
Therefore, sin (45) = sin (45) = sqrt(2)/2
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