Question
The circumference of a circle , whose are is 24.64 `m^2` is
Answer: Option C
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`pi R^2` = 24.64
`hArr R^2 = (24.64/22 xx 7)` = 7.84
`hArr R = sqrt(7.84)` = 2.8 cm
`:.` Circumference = ` (2 xx 22/7 xx 2.8 )` cm = 17.60 m.
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