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Mathematics 7 Online
OpenStudy (anonymous):

attached question, answerer(s) will get medals! did i pick the right answer?

OpenStudy (anonymous):

OpenStudy (iurxos):

The formula for the surface of a circle is pi*r^2, so with the radius of B being twice as big, the surface will be 4 times bigger. This is then multiplied by 4 at both cilinders to calculate the volume, so it should be 1:4

OpenStudy (anonymous):

oh, alright.

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