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January 30, 2015

January 30, 2015

Posted by **Brandon** on Saturday, February 18, 2012 at 8:50pm.

- geometry -
**Reiny**, Saturday, February 18, 2012 at 9:22pmthe ratio of sides of the 30-60-90 triangle

= 1 : √3 : 2

= 6 :6√3: 12

so perimeter = 6 + 6√3 + 12 = 18 + 6√3

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