How much is the area of 8. Open paper? How big is the size of the eight sheet paper

a0=1189*841

a1=841*594

a2=594*420

a3=420*297

A4 specification: 210*297

The unit is millimeters.

The specification of paper refers to the fact that after the paper is made, it is trimmed and cut to a certain size. How much in the past"On"(e.g. 8 carat or 16 carat, etc.) to express the size of the paper, and now I use the international standard, which stipulates that it is A0, A1, A2, B1, B2, etcand so on to indicate the format of the paper.

The standard stipulates that the ratio of the width (denoted by x) and the length (denoted by y) of the paper is x:y=1:n.

According to the basic area of the paper format, the format specifications are divided into A series, B series and C series, the format size of A0 is 841mm 1189mm, and the format area is 1 square meter; The format size of B0 is 1000mm 1414mm, and the format area is square meters; The format size of C0 is 917mm 1279mm, and the format area is square meters; Only A series and B series are used in the format specifications of copy paper. If the A0 paper is split into two equal parts along the length, it becomes the A1 format, and if the A1 paper is split along the length, it becomes the A2 format, and so on to the A8 format; B8 paper is also folked to B8 size according to this method. The format sizes of A0 A8 and B0 B8 are shown in the table below.

Among them, 7 format specifications, such as A3, A4, A5, A6 and B4, B5 and B6, are commonly used for copy paper.

For example, "A4" paper is to fold the basic size of A-type paper 4 times, so the area of a piece of A4 paper is 1/4 of the area of the basic paper 2, that is, 1 16. And so on for the rest.

The size of two 16 carat (B5) sheets is the size of 8 carat paper.

The dimensions of 8 open are: Largeness: 285mm 420 mm Positiveness: 260mm 370 mm

8 open paper area = 1/8 of the total area of this paper.

The size of the positive 8 open paper is: positive 260*370mm, generous 285*420mm.

The size of the layout is called the folio, and the folio is calculated in the whole sheet of paper, and the number of small sheets cut and folded in each whole sheet is called the number of folios. In our country, it is customary to name the folio book after the geometric progression, the size of the whole paper after folding in half is the folio, then folded in half for 4 open paper, then folded in half for 8 open paper, then folded in half for 16 open, then folded in half for 32 open, then folded in half for 64 open, and so on.

Common paper sizes:

The size of 787 1092 mm flat base paper is the main size of China's current cultural paper, and most of the existing papermaking and printing machinery in China are producing and applying this size of paper. At present, this size of paper is still used in Southeast Asian countries, and it is rarely used in other regions.

The size of 850 1168 mm is produced on the basis of 787 1092 mm 25 carat to meet the needs of larger open books, and this size of paper is mainly used for the needs of larger open books, and the so-called large 32 open books are used for this kind of paper.

The paper of 880 1230 mm is larger than the size of other equally open books, so the utilization rate of paper is higher when printing, and the type is more beautiful and generous, which is a kind of specification that is commonly used in the world.

Therefore, according to the different sizes of base paper, there are large 16 open, positive 16 open and so on.

Paper Format:

Full open: 787*1092mm 889*1194mm.

Folio: Positive 520*740mm Generous 570*840mm.

Four open: positive 370*520mm generous 420*570mm.

Six open: positive 370*520mm magnanimity 420*285mm.

Eight open: positive 260*370mm magnanimity 285*420mm.

Sixteen open: positive 185*260mm magnanimity 210*285mm.

Thirty-two open: positive 140*203mm generous 148*210mm.

8. The difference between open paper and A3 paper:

Many people mistakenly think that the size of 8 open paper and A3 paper is the same, in fact, there is a difference between the two, although the size difference is not big, A3 paper size (297mm 420mm) and the size of the large white material (290mm 422mm) want to be very close, so it is normal to mistakenly think that the same, after all, it is normal to have a slight error in cutting.

8. The use of open paper:

8-carat paper can be used for many other purposes, whether it is to make drafts or take notes, and no one has to do anything, but generally speaking, 8-carat paper is often used as a paper for sketching, so some people may think that 8-carat paper is only used for sketching, which is not necessarily. It can be used for other purposes.

The size of the 8 carat is 260mm 370 mm

16. The size of the paper is large: 210mm 285mm; Positiveness: 185mm 260mm.

16 open paper: 203 140;184×130

a5：148×210

The folio is calculated in the whole sheet, and the number of small sheets cut and folded in each whole sheet is called the number of folios. According to the size of the folio, there are usually three types: large folio, medium folio, and small folio.

In the case of 787 1092 paper, more than 12 folios are large folios, 16 36 folios are medium-sized folios, and less than 40 folios are small folios, but books with mainly text are generally medium-sized folios.

8. The positive size of the paper is 270mm 390mm, and the finished product is 260mm The paper is usually used as an art student's sketch and gouache painting, and it is also a commonly used paper size in the art student examination. In our country, it is customary to name the folio book deficit is named after the geometric progression, the size of the whole paper folded in half is the folio, and then folded in half for 4 open paper, and then folded in half for the pin mold file 8 open paper, and then folded in half for 16 open, and so on. <

8. The positive size of the paper is 270mm 390mm, and the finished product is 260mm The paper is usually used as an art student's sketch and gouache painting, and it is also a commonly used paper size in the art student examination. It is customary in our country to name the folio book after the geometric progression, the size of the whole paper folded in half is the folio, and then folded in half for the yard bird 4 open paper, then folded in half for 8 open paper, and then folded in half for 16 open, and so on.

The size of 8 open paper is 26 * cm, that is, 787 1092 mm, 850 1168 mm, etc. It is about equal to the size of two 16 carats.

8 paper positive: 260 * 370mm, generous: 420 * 285mm, 8 paper is mainly the size of the whole paper folded in half for the folio, and then folded in half for 4 open paper, then folded in half for 8 open paper, then folded in half for 16 open, then folded in half for 32 open, then folded in half for 64 open, and so on.

260 by 370mm.

8. The size of the paper is about 260 by 370mm according to the domestic standard of positive judgment (270 by 390 without cutting), if it is according to the international standard, it is what we call large paper, and the size of 8 paper is about 420 by 285mm. We also often call this kind of paper the Big Eight Opening.

But if what you say 8 open paper is the international standard, then we have to calculate separately, A4 paper is very common for everyone, now A0A1A2 is the international standard for measuring the size of paper, the size of a sheet of A3 is about 297 times 420. The size of two sheets of A4 paper is almost equal to one piece of A3 paper, converted to a formula, 8 sheets of paper are equal to 2 sheets of A4 is equal to 1 sheet of A3, and 16 sheets of paper are equal to 1 sheet of A4 paper.

8. The differences between open drawing paper and A4 paper include:

1. It's different. 8. The open paper is slightly larger.

2. The size of A4 paper is 210mm by 297mm, the aspect ratio of group A paper size is 270mm by 390mm, and the finished product is 260mm by 370mm.

3. A4 paper is to fold the basic size of A-type paper 4 times, so the area of a piece of A4 paper is 1/4 of the area of 2 of the basic paper, that is, 1/16 of the correction.

4. K-shaped paper is often said to be open paper, and the classification of K-type is to divide a large 1K paper into two sheets for 2K, divide 2K paper into half for 4K, divide 4K into half for 8K, divide 8K into half for 16K, divide 16K into half for 32K, etc. <>

The size of the paper is 270mm 390mm for white material and 260mm 370mm for finished products.

The folio is calculated in the whole sheet of Sakura Fortune Summoning paper, and the number of small sheets cut and folded in each full sheet of paper is called the number of folios. It is customary in our country to name the folio book with a geometric progression, the size of the whole paper folded in half is the folio, and then folded in half for 4 open paper, then folded in half for 8 open paper, then folded in half for 16 open, then folded in half for 32 open, then folded in half for 64 open, and so on.

Another name for 8 open:

8 sheets of paper, also known as A3, are 260mm and 370mm in size, and the side of 297 can be enlarged to 594,891,1189,1486,1783,2080,2378 depending on the situation. equal to twice the size of A4 paper.

According to the basic area of the paper format, the format specifications are divided into A series, B series and C series, the format size of A0 is: 841mm 1189mm, and the format area is 1 square meter. The format size of B0 is 1000mm, the format size is 917mm 1297mm, and the format area is square meters.

Only A series and B series are used in the format specifications of copy paper. <>