Answers

2016-03-06T11:24:10+05:30
Taking length of tower as the perpendicular and the length of shadow as the base we get :
 tan theta = p/b 
now b/p = root3/1
 p/b = 1/root3 (reciprocal of b/p)
1/root 3 is the value for tan 30.
 Hence, angle of elevation is 30 degrees.
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