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Solution - Heights and Distances

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Question

A person standing on the bank of river observes that the angle of elevation of the top of a tree standing on the opposite bank is 60°. When he moves 40 m
away from the bank, he finds the angle of elevation to be 30°. Find the height of the tree and width of the river.  3=1.73

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