Solve the Problem $77 ^ { \circ } 18 ^ { \prime }$

Solve the problem.
-From a balloon 839 feet high, the angle of depression to the ranger headquarters is $77 ^ { \circ } 18 ^ { \prime }$ . How far is the headquarters from a point on the ground directly below the balloon (to the nearest foot) ?

A) $179 \mathrm { ft }$
B) $184 \mathrm { ft }$
C) $194 \mathrm { ft }$
D) $189 \mathrm { ft }$

Correct Answer:

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