Question

An observer 1.5 metre tall is 20.5 metres away from a tower the two metres height. Determine the angle of elevation of the top of the tower from the eye of the observer.

Answer 1

Answer:

OB/BC=tanA

or, (22-1.5)/20.5=tanA

or, tanA=20.5/20.5

or, tanA=1

or, tanA=tan45°

or, A=45°

∴, the angle of elevation is 45°.

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