The ratio of the radii of two circle is 3 : 2. What is the ratio of their circumferences ?

The ratio of the radii of two circle is 3 : 2. What is the ratio of th

1.	The ratio of the radii of two circle is 3 : 2. What is the ratio of their circumferences ?
A.	: 3
B.	: 2
C.	: 9
D.	one of these
Answer» C. : 9

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The ratio of the radii of two circle is 3 : 2. What is the ratio of their circumferences ?

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