Question

Whats the theorem or post. called that proves the following

Answer 1

The xsqrt2 part

Answer 2

pythagorean theorem

Answer 3

isn't there another theorem?

Answer 4

that's the simplest one.....

Answer 5

and i dunno of any other....

Answer 6

I found it 45°-45°-90° Triangle Theorem or Theorem 9.8

Answer 7

if you're using similarity to 45-45-90 triangles, then you can use ratios.

Answer 8

but in any right triangle the pythagrean theorem is used to determine the length of the sides if two are known...

Answer 9

Thanks