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PQ is a vertical tower having P as the f...

PQ is a vertical tower having P as the foot. A,B,C are three points in the horizontal plane through P. The angles of elevation of Q from A,B,C are equal and each is equal to `theta` . The sides of the triangle ABC are a,b,c, and area of the triangle ABC is `` . Then prove that the height of the tower is (abc) `tantheta/(4)dot`

A

`(abc)tantheta//4Delta`

B

`(abc)cot theta//4Delta`

C

`(abc)sintheta//4Delta`

D

None

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The correct Answer is:
A
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