The ratio of areas of two wheels is 25 : 49. Find the ratio of thei

1.	The ratio of areas of two wheels is 25 : 49. Find the ratio of their radii.
A.	5 : 7
B.	4 : 9
C.	3 : 2
D.	2 : 7
Answer» B. 4 : 9

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The ratio of areas of two wheels is 25 : 49. Find the ratio of their radii.

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