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D Question 6 6) sin A С 39 36 15 B 5 12 A) B) 12 13

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B) 12/13

1) In this triangle, the sine of angle A is given by the opposite leg over the hypotenuse, so we can write it out. Since the hypotenuse is opposite to the right angle:


\begin{gathered} \sin (A)=(36)/(39) \\ \sin (A)\text{ = }(12)/(13) \end{gathered}

Note that we simplified that original ratio 36/39 dividing both numerator and denominator by 3

2) Hence, the answer is B) 12/13

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