the ratio of circumference and area of a circle is 2 :7.find it's circumference
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(2πr)/πr^2=2/7
2/r=2/7
r=7
circumferece=2πr
=(2x22x7)/7
=44 units
2/r=2/7
r=7
circumferece=2πr
=(2x22x7)/7
=44 units
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