What is the size of a4 paper?

What is the size of a4 paper? This is an issue that many netizens are concerned about. Next, the editor of PHP will introduce the size ratio of a4 paper. Interested netizens should follow the editor to take a look!

Introduction to the size ratio of A4 paper

1. The aspect ratio of A4 paper is different from the common 2:3 or 3:4. Its unique ratio of √2:1 makes it stand out among many paper sizes.

2. This special ratio provides ideal visual effects and practicality for A4 paper.

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