A person standing on the bank of a river observed that the angle subtended by the top a tree on the opposite bank is ` 6

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Q 3020656511.     A person standing on the bank of a river observed that the angle subtended by the top a tree on the opposite bank is ` 60^{\circ}` If he moves `40 m` away from the bank, he finds the angle to be ` 30^{\circ}`. The breadth of the river is :
A

`20 m`

B

`40 m`

C

`20\sqrt{3} m`

D

`40\sqrt{3} m`

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Solution
(Provided By a Student and Checked/Corrected by EXXAMM.com Team)

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