Dinnerdinne Dinnerdinne

31-01-2017
Mathematics

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I need help of finding x! Please help I do not understand this!

I need help of finding x Please help I do not understand this class=

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31-01-2017

X is equal to all the saizs

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jodeelhyn jodeelhyn

31-01-2017

Well, you know a2+b2=c2.
So x^2+x^2=18^2
2x^2=324
sqrt everything so you get:
+-2x=18
x=+-9

In this case, the length of side x is 9.

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