1, the inch of the TV generally refers to the diagonal length of the TV screen, according to the conversion of 1 inch =2.54 cm, the diagonal length of the 65-inch TV screen is 65x2.54=165.1 cm;
2, the screen ratio of the 65-inch TV is 16:9, so according to the Pythagorean theorem, the screen length of the TV is about 144 centimeters, and the width is about 81 centimeters.
We usually say that the size of the TV is measured by the diagonal length of the screen, and we usually say that 29 inches, 34 inches, etc., refers to this indicator.
At present, there are many varieties of TV on the market, and many strange sizes, such as Changhong and 38 inch rear projection, etc., the calculation method is the same. However, some color TV models in the nominal number is not necessarily the size of the TV, in the use of this table should be flexible grasp, considering the different brands of TV shell size, but also need to make a reasonable judgment according to the actual situation. (According to 1 inch = 2.5399998 cm).