Question

A man sitting at a height of 20 m on a tall tree on a small island in the middle of a
river observes two poles directly opposite to each other on the two banks of the river
and in line with the foot of tree. If the angles of depression of the feet of the poles
from a point at which the man is sitting on the tree on either side of the river are 60°
and 30° respectively. Find the width of the river.
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Answer 1

Answer:

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Step-by-step explanation:

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