Answer:
C = 89
Step-by-step explanation:
To find the third side, or the hypotenuse of a right triangle, we use the formula:
[tex]A^{2} +B^{2} = C^{2}[/tex]
With that said, the work would be as follows:
[tex]A^{2} +B^{2} = C^{2} \\39^{2}+80^{2}=C^{2}\\(39*39)+(80*80) = C^{2}\\1,521+6,400 = C^{2}\\C^{2} = 7,921\\\sqrt{7,921} = C\\C = 89[/tex]
Hope this Helps!
