Math Is Fun Forum

peter_peter

Member

Registered: 2009-02-24

Posts: 3

Why Z^2=x^2 + Y^2

I think it was about 7 years ago, I was thinking about why Z^2=X^2+ Y^2, my brain just come out the diagram I have attracted very quickly.

So, 2xy+Z^2 = (x+y)^2
     Z^2=x^2+Y^2

Hey I think it should have more solution and reason!

I can't upload the image, can somebody tell me? my file size is 628 kb is it the reason?

Last edited by peter_peter (2009-02-24 19:23:00)

Kurre

Member

Registered: 2006-07-18

Posts: 280

Re: Why Z^2=x^2 + Y^2

I guess you are thinking of one of the geometric constructions on this website.
http://jwilson.coe.uga.edu/EMT668/emt668.student.folders/HeadAngela/essay1/Pythagorean.html