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From the top of a tree, a man observes t...

From the top of a tree, a man observes the angle of deppression of a point which is at distance of 40 metres from the foot is `75^(@)`. The height of the tree is

A

`40sqrt(3)mts`

B

`21sqrt(3)mts`

C

`40(2+sqrt(3))mts`

D

`3sqrt(21)mts`

Text Solution

Verified by Experts

The correct Answer is:
C
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AAKASH SERIES-HEIGHTS AND DISTANCES-PRACTICE SHEET Exercise-I (Level-I) (Straight Objective Type Questions)
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  10. A flag-staff stands on a tower which is on level ground. The total hei...

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  14. A verrical pole subtends an angle tan^(-1)"1/2 at a points P on the gr...

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  15. A vertical pole more than 100ft high consists of two portions the lowe...

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  16. A straight pole A subtend a right angle at a point B of another pole a...

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

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  18. From a point E on the horizontal due to east of a tree, the top of the...

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