1. A 50-inch screen means that the diagonal length of the screen is 50 inches. Here, the inch refers to the unit of inch (in).
One inch is equal to 2.54 centimeters, and 50 inches (in) = 127 centimeters (cm), that is, the diagonal length of the screen is 127 centimeters (cm).
2. Generally, the screen ratio of a 50-inch LCD TV is 16: 9, so according to Pythagoras, it can be calculated that the screen length of a 50-inch LCD TV is about 111 cm and the width of the screen is about 62 cm; so the specific size is 111x62 cm
Therefore, for an old 50-inch LCD TV, the width-to-height ratio: 4: 3, then the hypotenuse: width: height = 5: 4: 3 (Pythagoras theorem), we can calculate that the screen width is about 101.6cm and the height is about 76.2 cm
For a widescreen 50-inch LCD TV, the aspect ratio is 16: 9, then the hypotenuse: width: height = 18.36: 16: 9. It can be calculated that the screen width is approximately 110.7cm and the height is 62.3cm.