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Question - Heights and Distances - Angle of Elevation, Angle of Depression

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ConceptHeights and Distances - Angle of Elevation, Angle of Depression  

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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