## Elementary Geometry for College Students (7th Edition) Clone

cos α = $\frac{8}{17}$ cos β = $\frac{15}{17}$
cos α = $\frac{length of adjacent}{length of hypotenuse}$ cos α = $\frac{8}{17}$ Similarly cos β = $\frac{length of adjacent}{length of hypotenuse}$ cos β = $\frac{15}{17}$