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

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 60o. Calculate the height of the water tank.
  • A.
    60m
  • B.
    30 (sqrt{3})m
  • C.
    20 (sqrt{3})m
  • D.
    10 (sqrt{3})m
Correct Answer: Option B
Explanation

h = 30 tan 60o
= 30(sqrt{3})