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What is the correct answer?


A square hole is made in a circular lamina, the diagonal of the square is equal to the radius of the circle as shown in below figure the shift in the centre of gravity is

A. r (π - 0.75)/(π - 0.5)

B. r (π - 0.25)/(π - 0.75)

C. r (π - 0.5)/(π - 0.75)

D. r (π - 0.5)/(π - 0.25)