Q20. A person standing on the bank of a river observes that the angle – InterviewSolution

1.	Q20. A person standing on the bank of a river observes that the angle of elevationof the top of tree standing on the opposite bank is 60o. When he moves 40 metresaway from the bank, he finds the angle of elevation to be 30°. Find the height ofthe tree and the width of the river.
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