a rectangular sheet of acrylic is 34 cm by 24 cm . from it ,64 circular bottoms ,each of diameter 3.5 ,have been cut out . find the area of the remaining sheet?
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Area of rectangular sheet=24×34=816cm^2
Area of one circle=22/7×(1.75)^2=9.8cm^2
Area of 64 circles=64×9.8=627.2
So remaining area =816-627.2=188.8cm^2
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