Question

what is sin a? sin a = ?

Explanation:

Step1: Recall sine - ratio formula

In a right - triangle, $\sin A=\frac{\text{opposite}}{\text{hypotenuse}}$.

Step2: Identify opposite and hypotenuse

The side opposite to angle $A$ is $23$, and the hypotenuse is $25$.

Answer:

$\frac{23}{25}$