from from four corners of a square sheet of side 4 cm 4 pieces each in the shape of Arc of a circle with radius 2 cm are cut out the area of the remaining portion is
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Answer:
Area of square = 4×4
16cm
Area of sector = 4×90/360 × 22/7 × 2×2
22×4/7 = 88/7
12.57cm
Area of remaning portion = 16.00 - 12.57
= 3.43cm
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