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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.

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The correct Answer is:
18 m
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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
  1. A man standing on the bank of a river observes that the angle subte...

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  2. Angle of elevation and depression

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  3. From a point P on a level ground, the angle of elevation of the ...

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  4. The angle of elevation of a ladder leaning against a wall is 60o an...

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  5. An observer 1.6 m tall is 20sqrt(3) m away from a tower. The angle ...

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  6. Two ships are sailing in the sea on the two sides of a lighthouse. ...

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  7. A man standing at a point P is watching the top of a tower, whic...

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  8. The angle of elevation of the top of a tower from a certain point i...

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  9. A man is watching from the top of a tower a boat speeding away from...

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  10. On the same side of a tower, two objects are located. When observed...

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  11. A man on the top of a vertical tower observes a car moving at a unifor...

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  12. The top of a 15 metre high tower makes an angle of elevation of 60o...

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  13. The angle of elevation of the top of an incomplete vertical pillar at ...

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  14. If a flag-staff of 6 m height placed on the top of a tower throws a sh...

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  15. A tree is broken by wind, its upper part touches the ground at a point...

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  16. A man standing on the bank of a river observes that the angle subte...

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  17. From the top of a lighthouse, 100 m high, the angle of depression of ...

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  18. If the height of a pole is 2sqrt(3) metres and the length of its sh...

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  19. A 30 metres long ladder is placed against a wall 15 m high such that i...

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  20. If the angles of elevation of the top of a tower from two points dista...

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  21. Length of the shadow of a person is x when the angle of elevation of t...

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