A circle of radius 2.1 cm is cut out from a square piece of plastic sheet of side 7cm. what is the area of the left ovre plastic sheet ?
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Area of square = side × side
= 7 × 7
= 49 cm² —(equation 1)
Area of Circle = πr²
= 22/7 × 2.1 × 2.1
= 13.86 cm² —(equation 2)
Area of leftover = (equation 1) - (equation 2)
= 49 - 13.86
= 35.14 cm² ans.
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