find area of a circle whose circumfrence is 66 cm
aditya100703:
346.5 cm2
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let the radius be x
circumference of the circle=2×22/7×x
66=2×22/7×x
66×1/2=22/7x
33×7/22=x
21/2=x
area of circle=22/7×21/2×21/2
therefore area is equal to 346.5 sqcm
circumference of the circle=2×22/7×x
66=2×22/7×x
66×1/2=22/7x
33×7/22=x
21/2=x
area of circle=22/7×21/2×21/2
therefore area is equal to 346.5 sqcm
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