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AB is a vertical pole with B at the ground level and and A at the top .A man finds that the angle of elevation of the point A from a certain point C on the ground is `60^(@)` . He moves away from the pole along the line BC to a point D such that CD = 7 m .From D . the angle of elevation of the point A is `45^(@)` .Find the height of the pole .

A

`7 (3+ sqrt3)`

B

`7/2 (3+sqrt3)`

C

`7/3 (3+sqrt3)`

D

`7/4 (3+sqrt3)`

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The correct Answer is:
B
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DIPTI PUBLICATION ( AP EAMET)-PROPERTIES OF TRIANGLES -EXERCISE 1C
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