Question

Angle of elevation of top of a chimney from a distance of 30m is 45°.Find the height of the chimney.


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Answer 1

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Answer 2

Given info : angle of elevation of top of a chimney from distance of 30 m is 45°.

To find : The height of the chimney is ...

solution : see diagram,

angle of elevation, θ = 45°

distance of the foot of chimney to the point P, d = 30 m

let the height of chimney is H

tanθ = height of chimney/d

⇒tan45° = H/30m

⇒1 = H/30m

⇒H = 30m

Therefore the height of chimney is 30 m.

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