PROBLEM
– 34
A
person standing on the bank of a river observes that the angle of elevation of
the top of a tree standing on the opposite bank is 60 degrees. When he moves 40
m away from the bank, he find the angle
of elevation to be 30 degrees. Find
(i)
the height of the tree, correct to 2 decimal places.
(ii) the width of the
river.
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