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Question

From a point situated at some distance from the base of a pillar, the angle of elevation of the top of the pillar is found to be 45 degrees. After walking 12 m further, the value of elevation angle becomes 60 . Tell the height of the pillar.

A (12√3)/(√3-1)

B (8√3)/(√3+1)

C (2√3)/(√3-1)

D (√3-1)/2

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