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A square hole is punched out of a circular lamina, the diagonal of the square being the radius of the circle. If r is the radius of the circle, the C.G. of the remainder from the corner of the square on the circumference will be


Options:
A .  `(r(pi + 0.25))/(pi - 0.5)`
B .  `(r(pi + 0.5))/(pi + 0.25)`
C .  `(r(pi + 0.25))/(pi + 0.5)`
D .  `(r(n - 0.25))/(pi - 0.5)`
Answer: Option C



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