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Solution - Heights and Distances

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Question

Two building are in front of each other on either side of a road of width 10 metres. From the top of the first building which is 40 metres high, the angle of elevation to the top of the second is 45°. What is the height of the second building?

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Solution for concept: Heights and Distances. For the course 9th - 10th SSC (English Medium)
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