The radii of two circles are in the ratio 2 : 3. What is the ratio of their circumferences?
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Hi ,
Let r , R are radii of two circles ,
ratio of radii = 2 : 3
r /R = 2 / 3
ratio of their circumference = ( 2πr ) / ( 2πR )
= r / R
= 2 / 3
= 2 : 3
I hope this helps you.
:)
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