Find circumference of circle whose area is 6.16cm²

1.	Find circumference of circle whose area is 6.16cm²
Answer» πr^²=6.16 is givenr^²/7=6.16/22r^²=(0.28)(7)r^²=1.96r=1.4So r=1.4Circumference of circle=2πr=(2)(22/7)(1.4)=(44)(0.2)=8.8

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