Question

Find the measure of side b.

Answer 1

b = 126.33 inches

Explanation:

We need to find the measure of side b.

Here, c = 170 inches

`\theta=42^(\circ)`

It can be calcuated using trigonometry as follows :

`\cos\theta=(B)/(H)\ ({\text{B is base and H is hypotenuse)}\\\cos(42)=(b)/(170)\\\\b=\cos(42)* 170\\\\b=126.33\ in`'

Hence, the length of b is 126.33 inches.