Encyclopedia > A4

Article Content

A4

A4 is a standard paper size, defined by the international standard ISO 216.

It is 210 x 297 mm.

There is a myth that this paper format should correspond to the golden mean, which is obviously incorrect, instead you can easily see that:

<math>\frac{297}{210} \approx \sqrt{2}</math>

A4 is also the actual model number for the German V-2 rocket.

All Wikipedia text is available under the terms of the GNU Free Documentation License

Search Encyclopedia

Search over one million articles, find something about almost anything!

Featured Article

Bullying

... who assumed power for any period of time without a legitimate basis of authority. The first to have the title of "Tyrant" was Pisistratus in 560 BC. In modern ...