Solve the Problem

Multiple Choice

Solve the problem. Round to the nearest whole unit.
-The top and base of a window are respectively 14 ft and 3 ft above the level of an observer's eyes. At what distance from the wall must the observer stand in order to make the angle subtended by the window equal to
The angle of elevation of its base?

A) 10 ft
B) 4 ft
C) 8 ft
D) 6 ft