Question

Find the sine of both angle A and angle B.

A. sin A = 5/13; sin B = 12/13
B. sin A = 12/13; sin B = 5/13
C. sin A = 5/12; sin B = 12/5
D. sin A = 13/5; sin B = 13/12

Answer 1

The triangle in the pic is a 5,12,13 triangle scaled by 2.

So you can just check using the rule sin = opposite/hypotenuse