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An observer 1.5 m tall is 30 away from a chimney. The angle of elevation of the top of the chimney from his eye is 60^o .

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An observer 1.5 m tall is 30 away from a chimney. The angle of elevation of the top of the chimney from his eye is 60o . Find the height of the chimney. 

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Let CE and AD be the heights of the observer and the chimney, respectively. 

We have

AD = 53.46 m 

So, the height of the chimney is 53.46 m (approx).

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