Question 42

A person standing on the bank of a river finds that the angle of elevation of the top of a tower on the opposite bank is 45°. Then which of the following statements is correct?


tan angle = perpendicular/base

So, in right angled triangle, 

tan 45 = height of tower/breadth of river

Since tan 45 = 1

So, height of tower = breadth of river 

Hence B

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