Mathematics
WAEC 2004
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 30
o. Calculate the height of the tower.
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A.
62.35m
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B.
20.78m
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C.
18.00m
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D.
10.39m
Correct Answer: Option B
Explanation
Where H is the height of the tower H = ?
\(Tan 30^{\circ} = \frac{H}{36} \Rightarrow H = 36 \times tan30^{\circ}\\
H = 36 \times 0.5774 = 20.79\)
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