Solve the Right Triangle $\mathrm { A }$ On One Bank and Walks 72 Feet Down the River

Multiple Choice

Solve the right triangle. If two sides are given, give angles in degrees and minutes.
-To measure the width of a river, a surveyor starts at point $\mathrm { A }$ on one bank and walks 72 feet down the river to point $\mathrm { B }$ . He then measures the angle $\mathrm { ABC }$ to be $22 ^ { \circ } 36 ^ { \prime } 10 ^ { \prime \prime }$ . Estimate the width of the rive to the nearest foot. See the figure below.

A) $173 \mathrm { ft }$
B) $66 \mathrm { ft }$
C) $30 \mathrm { ft }$
D) $28 \mathrm { ft }$