Question

score: 4/10 current time: 100.4 find: cos b answer 48/55 55/73 55/48 48/73

Explanation:

Step1: Recall cosine definition

In a right - triangle, $\cos\theta=\frac{\text{adjacent}}{\text{hypotenuse}}$. For angle $B$, the adjacent side to angle $B$ is $48$ and the hypotenuse is $73$.

Step2: Calculate $\cos B$

$\cos B=\frac{48}{73}$

Answer:

$\frac{48}{73}$