Twenty meters of wire is available for fencing off a flower-bed in the form of a circular sector.

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Question:

Twenty meters of wire is available for fencing off a flower-bed in the form of a circular sector. Then the maximum area (in sq. $\mathrm{m}$ ) of the flower -bed, is :

  1. 30

  2. $12.5$

  3. 10

  4. 25

Correct Option: , 4

Solution:

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