How is screen size measured?

How is screen size measured?

• A. Diagonally in inches
• B. Vertically in pixels
• C. Horizontally in inches
• D. By area

Answer: (A)

Screen size is measured diagonally in inches. This means you measure from one corner of the visible screen to the opposite corner, and you express that distance in inches. The diagonal is used because it gives a single number that reflects the overall scale of the display, regardless of its width and height. It also lets you compare screens with different shapes, since the same diagonal length will look similar in size across various aspect ratios. Resolution or pixels describe how many picture elements the display can show, not how big the display is. Measuring by area would depend on the exact width and height and isn’t how screens are marketed, so it wouldn’t give you a straightforward way to compare sizes. For example, a 16:9 screen with a 32-inch diagonal will be about 27.9 inches wide and 15.7 inches tall, while a much wider screen with the same diagonal would have a larger width and a different height, yet the diagonal still communicates the overall size.

Screen size is measured diagonally in inches. This means you measure from one corner of the visible screen to the opposite corner, and you express that distance in inches. The diagonal is used because it gives a single number that reflects the overall scale of the display, regardless of its width and height. It also lets you compare screens with different shapes, since the same diagonal length will look similar in size across various aspect ratios.

Resolution or pixels describe how many picture elements the display can show, not how big the display is. Measuring by area would depend on the exact width and height and isn’t how screens are marketed, so it wouldn’t give you a straightforward way to compare sizes.

For example, a 16:9 screen with a 32-inch diagonal will be about 27.9 inches wide and 15.7 inches tall, while a much wider screen with the same diagonal would have a larger width and a different height, yet the diagonal still communicates the overall size.