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October 21, 2014

October 21, 2014

Posted by **brit** on Saturday, September 24, 2011 at 3:58am.

- math -
**Reiny**, Saturday, September 24, 2011 at 8:28ammake a sketch,

label the two shorter sides x

and the one longer side 2x (it is twice as long)

so x(2x) = 512

2x^2 = 512

x^2 = 256

x = √256 = 16

so he needs 3x of fencing or 48 feet

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