Question

an observer 1.5 m tall is 28.5 M away from a Chimney the angle of elevation of the top of the chimney from her eyes is 45 degree what is the height of chimney

Answer 1

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Answer 2

Say AB is the chimney and C is the point of observation.
In triangle ABC,
tan C = (AB-1.5)/BC
tan 45° = (AB-1.5)/28.5
Therefore, AB = 30 m
Therefore, Height of chimney = 30 m