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June 20, 2013

# Homework Help: geometry

Posted by Cindy on Wednesday, December 14, 2011 at 9:35pm.

The length of the hypotenuse of a 30°-60°-90° triangle is 12. Find the perimeter.

• geometry - Reiny, Wednesday, December 14, 2011 at 11:31pm

sides of standard 30-60-90 triangle are 1 , √3, 2

so the larger triangle has sides 6, 6√3 and 12
(multiplied by a factor of 6)

perimeter = 6 + 6√3 + 12 = 18 + 6√3

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