A school boy lying on the ground 30m away from the foot of a water...

JAMB 1995

A school boy lying on the ground 30m away from the foot of a water tank tower observes that the angle of elevation of the top of the tank 60^o. Calculate the height of the water tank.

A. 60m
B. 30 \(\sqrt{3}\)m
C. 20 \(\sqrt{3}\)m
D. 10 \(\sqrt{3}\)m

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Correct Answer: Option B

Explanation

h = 30 tan 60^o

= 30\(\sqrt{3}\)

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A school boy lying on the ground 30m away from the foot of a water...

Correct Answer: Option B

Explanation

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