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A tower, of x metres high, has a flagsta...

A tower, of x metres high, has a flagstaff at its top. The tower and the flagstaff subtend equal angles at a point distant y metres from the foot of the tower. Then the length of the flagstaff in metres in

A

`(y(x^2-y^2))/((x^2+y^2))`

B

`(x(y^2+x^2))/((y^2-x^2))`

C

`(x(x^2+y^2))/((x^2-y^2))`

D

`(x(x^2-y^2))/((x^2+y^2))`

Text Solution

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The correct Answer is:
B
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DIPTI PUBLICATION ( AP EAMET)-PROPERTIES OF TRIANGLES -EXERCISE 1C
  1. From a point on the level ground, the angle of elevation of the top of...

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  2. The elevation of an object on a hill is observed from a certain point...

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  3. A tower, of x metres high, has a flagstaff at its top. The tower and t...

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  4. A flag staff of length 'd' stands on tower of height h. IF at a point ...

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  5. The angles of elevation of a tower from two points which are at distan...

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  6. A flag staff on the top of the tower 80 mt of height subtends an angle...

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  7. The angles of elevation of a cliff at a point A on the ground and at a...

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  8. The top of a hill observed from the top and bottom of a building of he...

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  9. A flag staff of 5 mts high stands on a building of 25 mt high. At an o...

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  10. From the top of a building 60 m high the angle of elevation of the top...

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  11. The horizontal distance between two towers is 60m and the angular depr...

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  12. From the top of a cliff 60 mt high, the angles of depression of top an...

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  13. From the top of the hill h metres high the angles of depression of the...

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  14. These are two towers on a horizontal line. From the mid point of the l...

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  15. The angles of elevation of the tops of two vertical towers as seen fro...

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  16. P is a point on the segment joining the feet to vertical poles of heig...

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  17. A tower subtends angles alpha,2 alpha, 3 alpha respectively at points ...

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  18. The angle of elevation of a cloud from a point h mt above the surface ...

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  19. The angle of elevation of a stationary cloud from a point 2500 mt abov...

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  20. The angle of elevation of the top of the tower observed from each of t...

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