Solve the Problem $5.8$ - $\mathrm { ft }$ Fence Is $15.431 \mathrm { ft }$

Multiple Choice

Solve the problem.
-A $5.8$ - $\mathrm { ft }$ fence is $15.431 \mathrm { ft }$ away from a plant in the direction of the sun. It is observed that the shadow of the fence extends exactly to the bottom of the plant. (See drawing) Find $\theta$ , the angle of elevation of the sun at that time. Round the measure of the angle to the nearest tenth of a degree when necessary.

A) $\theta = 22 ^ { \circ }$
B) $\theta = 20.4 ^ { \circ }$
C) $\theta = 20.8 ^ { \circ }$
D) $\theta = 20.6 ^ { \circ }$