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If a wire is bent into the shape of a square, then the area of the square is 81 sq. cm. When the wire is bent into a semi-circular shape, then the area of the semi-circle will be (a) 22 cm2 (b) 44 cm2 (c) 77 cm2 (d) 154 cm2

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The correct Answer is:
`77 cm^2`
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