How much is x?
http://www.shrani.si/f/41/ay/tnlEY3j/triangle.png
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How much is x?
http://www.shrani.si/f/41/ay/tnlEY3j/triangle.png
(x - 3)^2 + x^2 = (x + 3)^2.Quote:
Originally Posted by Nforce
Expand, simplify and solve for x.
i know i have to use pythagorean theorem, but i can's solve it. I always get x^2 = 12x
x^2 - 12x = 0 => x(x - 12) = 0 => x = 0 (rejected) or x = 12.Quote:
Originally Posted by Nforce
yes, thanks... i forget that