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The upper 3//4th portion of a vertical p...

The upper `3//4th` portion of a vertical pole subteds pole subteds an angle `Tan^(-1)(3//5)` at a point in the horizontal plane through its foot and at a distance 40m from the foot. A possible height of the vertical pole is

A

`20m`

B

`40m`

C

`60m`

D

`80m`

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Verified by Experts

The correct Answer is:
B
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