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From the top of a building h meters, the...

From the top of a building h meters, the angle of depression of an object on the ground is `alpha`. the distance( in meter) of the object from the foot of the building is

A

`h cot alpha`

B

`h tan alpha`

C

`h cos alpha`

D

`h sin alpha`

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The correct Answer is:
A
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DIPTI PUBLICATION ( AP EAMET)-PROPERTIES OF TRIANGLES -EXERCISE 1C
  1. From the top a mast of 180 mt high, the angle of depression of an obje...

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  2. From the top of a building h meters, the angle of depression of an obj...

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  3. If a flag staff of 6 mt high placed on the top of a tower throws a sha...

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  4. The shadow of the tower standing on a level ground is found to be 60 m...

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  5. The sum of angles of elevation of the top of a tower from two points d...

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  6. AB is a vertical pole with B at the ground level and and A at the top ...

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  7. A person walking along a straight road towards a hill observes at two ...

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  8. The angle of elevation of an object from a point P on the level ground...

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  9. The angle of elevation of the top of a tower from a point on the same ...

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  10. From a point on the level ground, the angle of elevation of the top of...

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

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

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

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

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

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

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

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

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

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

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