3) A 12-ft high flagpole is standing vertically at the edge of the roof of a building. The angle of elevation of the top of the pole from a point on the ground that is 64 ft from the base of the building is 78° and 50'. Find the height of the building.

a) 112.2 ft

b) 212.2 ft

c) 312.2 ft

d) 412.2 ft