a circle of radius 5 centimetres is cut out from square piece of in aluminium sheet of side 10 cm what is the area of the left over aluminium ( take pie as 3.14 )
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Radius of circle = 5 cm
Side of aluminum sheet = 10
Area of remaining sheet = Area of square aluminium sheet - Area of circle
= Side × Side - πr²
= 10×10 cm - 3.14 × 5 × 5
= 100 cm - 78.5
= 21.5 cm ²
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