[tex]x^2+25=225 \\ x^2=200 \\ \sqrt{x^2}= \sqrt{200} \\ x=14.14 \\ or \\ x=10 \sqrt{2} [/tex]
If
[tex] c^{2} \ \textless \ a^2+b^2[/tex] the triangle would be acute
If
[tex]c^2=a^2+b^2[/tex] the triangle would be right
If
[tex]c^2\ \textgreater \ a^2+b^2[/tex] the triangle would be obtuse
Hope this helps!
