Firstly, you need to find the x length in inches by using the Pythagorean theorem.
[tex]a^2+b^2=c^2
[/tex]
[tex]x^2+6^2=8^2[/tex]
[tex]x^2=64-36[/tex]
[tex]x= \sqrt{28}[/tex] [approx. 5.3 inches]
To find side y,
[tex]y^2+5.3^2=7^2[/tex]
[tex]y^2=49-28.09[/tex]
[tex]y= \sqrt{20.91}[/tex] [approx 4.6 inches]