1.

A circular path is 50 m. wide. The angle of elevation of the top of a pole at the centre of the circular park at a point on the outer circle is 45^(@). The height of the pole is

Answer»

`(50 cos alpha)/(cos alpha-sin alpha)`
`(50 sin alpha)/(sin alpha-cos alpha)`
`(50)/(cos alpha-sin alpha)`
`(50)/(cos alpha+sin alpha)`

ANSWER :B


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