Question

The bear moves closer, so Rick decides to go to the other side of the lake. Since there is a forest, he can only spotpoint A when angle C measures 50'. What trigonometric function would Rick

use to find AB if he knows the measure of BC ?

Answer 1

Tangent

Explanation:

Given

`\angle C = 50`

See attachment for complete question

Required

Function to calculate BC

If AB is known, BC is calculated as:

`\tan(C) = (AB)/(BC)`

Substitute d for AB and 50 for C

`\tan(50) = (d)/(BC)`

Make BC the subject

`BC = d * \tan(50)`

Hence, BC can be found using tangent