Question

A computer monitor is 20 inches wide. The aspect ratio, which is the ratio of the width of the screen to the height of the screen, is

16:9
What is the length of the diagonal of the screen, to the nearest whole inch?
Enter your answer in the box.

Answer 1

22.95 in = ~~ 23 inches

Explanation:

16 + 9 = 25

9/16 = x/20 shows x = 11.25 in is height

diagonal ( via pyhtag theorem)

= sqrt ( 20^2 + 11.25^2 ) = 22.95 inches