The ratio of the radii of two circles is 3 : 4. The ratio of their circumferences is
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let r and R the radius of circle
given -
- r/R =3:4
To find :
- ratio of circumference
solution :
circumference of a circle - 2πr
ratio of there circumference
=2πr/2πR
=2π3/2π4
=3/4
hence the ratio of circumference is
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