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

Let x represent the distance between chord AB and point P. Let y represent the distance between chord CD and point P. x$^2$=5$^2$-4$^2$ x$^2$=9 x=3 y$^2$=5$^2$-3$^2$ y$^2$=16 y=4 y-x=4-3=1