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Twenty metres are available to fence a ...

Twenty metres are available to fence a land in the form of a circular sector. If the land should have the greatest possible surface area, then the the radius of the circle must be -

A

5 m

B

4 m

C

6 m

D

3 m

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The correct Answer is:
A
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CHHAYA PUBLICATION-MCQ ZONE 3 -Question Paper 8
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