## Elementary Geometry for College Students (6th Edition)

x=2$\sqrt {14}$ y=13
x$^2$=(6$\sqrt 2$)$^2$-4$^2$ x$^2$=72-16 x$^2$=56 x=2$\sqrt {14}$ The right triangle in the center has legs of length 3 and 4 which makes it a pythagorean triple with a hypotenuse of 5. y$^2$=12$^2$+5$^2$ y$^2$=169 y=13