The ratio of the radii of two circle is 1:3 the radio of their areas i

1.	The ratio of the radii of two circle is 1:3 the radio of their areas is?
A.	1:3
B.	1:6
C.	1:9
D.	None of these
Answer» D. None of these

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The ratio of the radii of two circle is 1:3 the radio of their areas is?

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