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A square sheet of maximum area is cut out from a circular piece of cardboard of radius 21cm.Find the area of the remaining cardboard. |
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Answer» Answer: 504cm² Step-by-step EXPLANATION: maximum area of square that is cut from CIRCLE has DIAGONAL equal to diameter of circle so, diameter=21×2=42 since it is diagonal of square so, a√2=42 a=21√2 area of square=21√2×21√2=882 now, area of circle=πr²=22×441/7=1386cm² area of REMAINING cardboard=1386-882=504cm² |
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