Elementary Geometry for College Students (7th Edition) Clone

1. We are told that YW is 14.3 inches. 2. Since YX is congruent to YZ, which equals 7.8 inches, YX equals 7.8 inches. 3. Since we found it is a right triangle, we use the Pythagorean theorem to find XW: $XW = \sqrt{ 7.8^2 + 14.3^2} = 16.3$ Thus: $P = 16.3 + 7.8 + 14.3 = 38.4$