How much is x?

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- May 23rd 2010, 06:20 AMNforcePythagorean theorem?
How much is x?

http://www.shrani.si/f/41/ay/tnlEY3j/triangle.png - May 23rd 2010, 06:21 AMmr fantastic
- May 23rd 2010, 06:32 AMNforce
i know i have to use

**pythagorean theorem, but i can's solve it. I always get x^2 = 12x**

- May 23rd 2010, 06:35 AMmr fantastic
- May 23rd 2010, 06:38 AMNforce
yes, thanks... i forget that