Pythagorean theorem is
[tex] {a}^{2} + {b}^{2} = {c}^{2} [/tex]
Say a triangle looked like the attached picture.
To solve for x, plug the values into the pythagorean theorem.
[tex] {x}^{2} + { \sqrt{2} }^{2} = {3}^{2} [/tex]
[tex] {x}^{2} + 2 = 9[/tex]
[tex] {x}^{2} = 7[/tex]
[tex]x = \sqrt{7} [/tex]
If you need any more help then reply to this with a comment!
