The measurements of a size A4 paper are 11.7 x 8.3 inches or 297 x 210 millimeters. It is just a little bigger than the standard letter size of paper.
A4 paper size is 8.3in × 11.7in.
Half of A4 is A5.
Two full A4 size papers
A3.
The A stands for A Series of the ISO paper sizes.
A4 paper is 8 1/2 by 11 inches- standard size paper. Or, I believe, 21 by 30 cm in metric measurements.
A4 paper size is 8.3in × 11.7in.
European size paper
If you are looking at the A4 paper portrait on the sides it would be 29.7cm and the top and bottom are 21.0cm.
A4 paper measures 8.27 x 11.69 inches.
Half of A4 is A5.
1mm
Yes
Two full A4 size papers
The size of the paper should be an A4 paper.
A4 paper is exactly half the size of A3, and they both have the same aspect ratio. So A4 --> A3 is an enlargement. Most photocopiers use A4 as standard. You need a larger photocopier to copy onto A3. The photocopier will usually offer A4 --> A3 as an option.
No, Australia is one of the few countries in the world that use A3 as their standard format size. Even if it does, A3 and A4 are all part of the A series paper sizes defined by ISO 216.