## Introductory Algebra for College Students (7th Edition)

The height and width of a television form the legs of a right triangle. The diagonal is the hypotenuse. Let d be the diagonal measurement. $d^2=21^2+24^2$ Simplify. $d^2=441+576$ $d^2=1017$ Take the square root of each side. $\sqrt{d^2}=\sqrt{1017}$ Simplify and round. $d\approx32$