42. The formula to find the total surface area of a 5-rupee coin is A= – InterviewSolution

1.	42. The formula to find the total surface area of a 5-rupee coin is A=A.2trhB.tr2C.2tr2D. 2tr(r+h)43. If n- 100.A 25 and x25 then fd.
Answer» surface area of coin=πr^2

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