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A man standing on the bank of a river observes that the angle subtended by a tree on the opposite bank is `60o` . When he retires 36 m from the bank, he finds the angle to be `30o` . Find the breadth of the river.

A

`12sqrt(3)` m

B

18 m

C

12 m

D

27 m

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The correct Answer is:
B
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Problems based on finding the breadth of the river; exp-1A man standing on the bank of the river observes that the angle subtended by the tree on the opposite bank is 60^(0). When he retires 36m from the bank,he found the angle to be 30^(0). What is the breadth of the 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 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 returns 40 m from the bank, he finds the angle to be 30^(@). What is the breadth of the river?

A person standing on the bank of a river observers that the angle subtends by a tree on the opposite bank is 60^(@) . When he retires 40 feet from the bank, he finds the angle to be 30^(@) . Find the height of the tree and the breadth of the river.

A person standing on the bank of a river observes that the angle subtended by a tree on the opposite bank is 60^(@) , when he retreats 40m from the bank he finds the angle to be 30^(@) . Find the height of the tree and the breadth of the river.

MCGROW HILL PUBLICATION-HEIGHTS AND DISTANCES -MULTIPLE CHOICE QUESTIONS
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