On a television set, a 19-inch picture means that 19 diagonal inches of screen are visible.

Portable media players have a range of options, with screen sizes from two inches diagonal up to seven inches or more.

Trim the ends of the zucchini and cut them slightly on the diagonal into slices 1/4 inch thick.

The devices have backlighted color touch-screens that measure just over eight diagonal inches and have 640-by-240-pixel resolution.

The catch is that the screen is only 24 inches, diagonal.

Their specifications are more honest: a 12-inch LCD displays 12 diagonal inches of picture, while a so-called "15-inch" tube monitor may typically show just about 13 1/2.

You can compute the size value by using a tool of the TV marketers: price per diagonal inch.

It projects images of variable size, from 14 to 70 diagonal inches.

The 326ppi "retina" display of the iPhone 4 quickly made the iPad's 1024 x 768 pixels look decidedly fuzzy when spread over 9.7 diagonal inches.

The "14-inch" model 1010 monitor delivers images measuring about 13 diagonal inches.