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At a point 20 m away from the foot of a ...

At a point 20 m away from the foot of a tower, the angle of elevation of the top of the tower is `30^@` The height of the tower is

A

`20sqrt(3) m`

B

`(20)/(sqrt(3)) m`

C

`(sqrt(3))/(20)m`

D

None of these

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The correct Answer is:
B
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