The angle of elevation of the top of a tower from a point on the ground which is 36m away from the foot of the tower is 30o. Calculate the height of the tower.
-
A.
62.35m -
B.
20.78m -
C.
18.00m -
D.
10.39m
Correct Answer: Option B
Explanation
Where H is the height of the tower H = ?
(Tan 30^{circ} = frac{H}{36} Rightarrow H = 36 times tan30^{circ}\
H = 36 times 0.5774 = 20.79)