Answer:
D. 12.5 ft
Step-by-step explanation:
The mnemonic SOH CAH TOA reminds you that ...
Tan = Opposite/Adjacent
In this problem, you are given an angle, the side adjacent to it, and asked for the length opposite the angle. Hence the tangent relation is the appropriate one to use.
tan(32°) = height/(20 ft)
(20 ft)·tan(32°) = height ≈ 12.5 ft
The height of the tree is about 12.5 ft.
