Question

A fireman is standing 25 m due west of the burning building. If the angle of elevation of the ladder is 51°, how long is his ladder (round to the nearest meter)?

A) 33 meters
Eliminate
B) 34 meters
C) 39 meters
D) 40 meters

Answer 1

Cos 51 = 25/h, where h is the height of the ladder. So h= 39.7, which rounded is 40 meters