Question

The rectangular face of a computer monitor has a length of 25 inches and a width of 12 inches. What is the diagonal length of the monitor?

O 16 inches
O 20 inches
O 23.3 inches
33.2 inches

Answer 1

27.7 in

Explanation:

Since the face of the monitor is a rectangle, the diagonal, length and width form a right triangle.

Let d = length of the diagonal

Using the Pythagorean theorem we have

`25^(2) + 12^(2) = d^(2)`

625 + 144 =
`d^(2)`

769 =
`d^(2)`

d =
`√(769) = 27.7` in