How big is the screen of a 5.5-inch mobile phone?

The 5.5-inch screen is roughly the size of a rectangle, with a length of 12. 18 cm and a width of 6.85 cm.

The analysis is as follows:

The mobile phone screen is 5.5 inches, which means the diagonal of the screen is 5.5 inches.

1 inch = ≈ 2.54cm 5.5in ≈13.97cm.

At present, more than 90% of mobile phone screens on the market are 16: 9 (aspect ratio), which is the rectangular mobile phone you usually see.

According to this data, you can calculate it.

Suppose the screen length is x and the screen width is 9X/ 16: 9.

Pythagorean theorem, you know:

X+(9X/ 16)= 13.97

256 x+8 1X = 4996 1. 19

337X=4996 1. 19

X≈ 12. 18

The width is 9x12.18 ÷16 ≈ 6.85.

Extended data:

Inch conversion

1 mil =11000 inch = 0.00254 cm = 0.0254 mm.

1 inch = 1000 mile = 2.54 cm = 25.4 mm.

English 12 inch (_) is 1 foot (_), and 36 inch is 1 yard.

1 inch =16mm (digital sensor)

Inch application

In building materials, pipes are measured in inches, that is, 2.54cm, not urban inches.

In liquid crystal displays, the specifications are generally 17 inch, 19 inch, 22 inch, etc. In mobile phones, the current screen sizes are generally 4.0 inches, 4.2 inches, 4.5 inches, 4.7 inches, 4.8 inches, 5.0 inches, 5.2 inches, 5.5 inches, 5.7 inches and 6.44 inches. In tablet computers, the screen sizes are generally 7.9 inches, 9.7 inches and 12.9 inches. The size of the display screen is usually measured by the diagonal length in inches. Inch generally means "inch" here.

Inch fraction: 1/643/645/647/649/64-

Decimal of inch: 0.0 15625.0438+0250 0.75-

China's customary address: 1.20%, 2.50%, 3.70%-

Inches (abbreviated as in. In Dutch, it means thumb, and one inch is the width of ordinary people's thumb at the bottom of their nails. Of course, people's thumb width is also different. /kloc-In the 4th century, King Edward II of England promulgated the "standard legal inch". It is stipulated that the three largest wheat grains should be selected from the middle of the barley ear and arranged in a row one inch in length.

Inch (_) is a unit of length used by Britain and its former colonies. Generally, 1in = 2.54cm, English 12 inch is 1 foot, and 36 inch is 1 yard.

Baidu Encyclopedia: inches