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A vertical tower stands on a declivity w...

A vertical tower stands on a declivity which is inclinde at `15^(@)` to the horizon. From the foot of the tower a man ascends the declivity from 80 feet and then finds that the tower subteds an angle of `30^(@)`. The height of the tower is

A

`40(sqrt6+sqrt2)`

B

`20(sqrt6-sqrt2)`

C

`40(sqrt6-sqrt2)`

D

`10(sqrt6-sqrt2)`

Text Solution

Verified by Experts

The correct Answer is:
C
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AAKASH SERIES-HEIGHTS AND DISTANCES-PRACTICE SHEET (EXERCISE HEIGHTS AND DISTANCES) (LEVEL- I (MAIN) SINGLE ANSWER TYPE QUESTIONS)
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  14. The angle of elevation of the top point P of a vertical tower PQ of he...

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  15. The angle of elevation of the top of a tower from the top and botton o...

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  17. A person observes the top of a tower from a point A on the ground. the...

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  18. P is a point on the segment joining the feet of two vertical poles of ...

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