Solve the Problem $11 ^ { \circ }$ And $24 ^ { \circ }$

Multiple Choice

Solve the problem.
-An airplane is sighted at the same time by two ground observers who are 5 miles apart and both directly west of the airplane. They report the angles of elevation as $11 ^ { \circ }$ and $24 ^ { \circ }$ . How high is the airplane? Round to the nearest hundredth of a mile.

A) $0.95 \mathrm { mi }$
B) $1.73 \mathrm { mi }$
C) $3.68 \mathrm { mi }$
D) $2.03 \mathrm { mi }$