Question

score: 0/10 current time: 149.9 find: cos b the figure is not drawn to scale answer $\frac{33}{65}$ $\frac{56}{33}$ $\frac{33}{56}$ $\frac{56}{65}$

Explanation:

Step1: Recall cosine - ratio definition

In a right - triangle, $\cos\theta=\frac{\text{adjacent}}{\text{hypotenuse}}$. For angle $B$, the adjacent side to angle $B$ is $56$ and the hypotenuse is $65$.

Step2: Calculate $\cos B$

$\cos B=\frac{56}{65}$

Answer:

$\frac{56}{65}$