A circular disc of diameter 20cm is cut into 8 pieces . Find area of each piece.
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20 cm divided by 8 =2.5 cm
so one side of each pieces =2.5 cm
Area of 1 piece =2.5 cm multiply by 2.5 cm = 6.25 cm
[ for genral knowledge] Area of 8 pieces = 6.25 cm multiply by 8 = 50 cm
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