Question

what is sin a? a 8 17 15 sin a = ？

Explanation:

Step1: Recall sine - definition

In a right - triangle, $\sin\theta=\frac{\text{opposite}}{\text{hypotenuse}}$. For angle $A$, the side opposite to angle $A$ has length 15 and the hypotenuse has length 17.

Step2: Calculate $\sin A$

$\sin A=\frac{15}{17}$

Answer:

$\frac{15}{17}$