NEW a printer, A4 paper

Description

The commonly used paper size is A4, which is 297 times 210 mm in size.
Group A paper
The aspect ratio of the dimensions is √2:1. The most commonly used paper size is A4, which is 297 times 210 mm in size.
The basis for the development of the A series is first to obtain a sheet of paper with an aspect ratio of √2 and an area of 1 square meter (m2). Therefore, the paper has a width of 841 mm and 1189 mm (length ratio of √ 2:1) and is numbered A0. If the long side of the A0 paper is cut into two, then two sheets of A1 paper are obtained, both of which are 594 mm and 841 mm wide. By continuing to cut the A1 paper in this way, the paper sizes of A2, A3, A4, etc. can be obtained in sequence. When setting standards, the dimensions are based on the whole number, so if the cut paper size has a decimal (less than 1 mm), the calculation is rounded.