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The angle fo elevation of the loop of a ...

The angle fo elevation of the loop of a vertical tower standing on a horizontal plane is observed to be `45^(@)` from a point `A` on the plane. Let `B` be the point `30m` vertically above the point `A`. If the angle of elevation of the top of the tower from `B` be `30^(@)`, then the distance (in m) of the foot of the lower from the point `A` is:

A

`15(5-sqrt(3))`

B

`15(3+sqrt(3))`

C

`15(1+sqrt(3))`

D

`15(3-sqrt(3))`

Text Solution

Verified by Experts

The correct Answer is:
B
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