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A person standing on the bank of a river...

A person standing on the bank of a river observes that the angle subtended by a tree on the opposite of bank is `60^(@)`. When he retires 40 m.from the bank, he finds the angle to be `30^(@)`. What is the breadth of the river ?

A

20 m

B

24 m

C

40 m

D

64 m

Text Solution

Verified by Experts

The correct Answer is:
A
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