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A vertical pole (more than 100 ft. high)...

A vertical pole (more than 100 ft. high) consists of two portions the lower being `(1)/(3)`rd of the whole. If the upper portion subtends an angle `"tan"^(-1)(1)/(2)` at a point in a horizontal plane through the foot of the pole and distance 40 ft. from it, then the height of the pole is _____

A

100 ft

B

120 ft

C

150 ft

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
B
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