A 50-inch television’s length and width are determined by the amount of area dedicated to the bezel, however a 50-inch wide-screen with a 16:9 aspect ratio is 43.58 inches wide and 24.51 inches high. A screen with a conventional 4:3 aspect ratio is 40 inches wide and 30 inches tall.
The factors 0.8 and 0.6 can be applied to the diagonal length to determine the width and height of a conventional screen with a 4:3 aspect ratio for alternative screen sizes. The factors 0.87 and 0.49 are used for broad displays with a 16:9 aspect ratio. A standard bezel increases the screen size by 3 to 5 inches.