1.

A vertical lamp foot of height 10m stands at the corner of the rectangular field. The angle of elevation of its top from the farthest corner is 30∘ while from one of the other two corners it is 45∘, then the area of the field is

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A vertical lamp foot of height 10m stands at the corner of the rectangular field. The angle of elevation of its top from the farthest corner is 30 while from one of the other two corners it is 45, then the area of the field is



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