Thursday

August 21, 2014

August 21, 2014

Posted by **Vanessa** on Friday, April 19, 2013 at 9:21pm.

- Geometry -
**Reiny**, Friday, April 19, 2013 at 10:33pm4/1

proof:

let the radius of the smaller be r

let the radius of the larger be 2r

area of smaller = πr^2

area of larger = π(2r)^2 = 4πr^2

ratio of larger to smaller = 4πr^2/(πr^2) = 4/1 or 4 : 1

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