Not origami, but still. I had a case not so long ago. I listened to something, thought about something, and folded a sheet of A4 paper. As a result, I went nuts that I got an equilateral triangle. He took the ruler, measured it - that's right.
I want to ask you, my dears: are there such ways already? I’m unlikely to be the first.
P.S. I asked the Internet - they said they do not know.
Once again about the task:
There is a sheet of A4. Using only the folds make an equilateral triangle.
Question: who in what way will come to the solution of the problem?
It is not simple, not difficult. This is not why.
I ask about the sequence of actions only.
How to make a military envelope from paper triangle?
Now 72 years have passed since the end of the war, but there are still those few heroes who remember these troubled times. The current generation, of course, does not know those difficult days, but our task is to put into the memory of the younger generation, what was worth its peaceful sky above your head! We cannot forget our veterans who lost their childhood and youth, and many - health and lives! For the sake of us, for the sake of a common future. An important problem in the war years was the shortage of envelopes; letters were almost the only way to keep in touch with loved ones. Therefore, they had to do it ourselves, even children could. If you are a mother, a kindergarten teacher or a primary school teacher, we suggest that you start a conversation about the war with the difficulties of correspondence and teach the children how to make a military envelope out of paper “triangle”.
Sheets of paper are folded into a triangle is very simple, if you act according to this algorithm:
- We take a rectangular paper sheet, you can take it from a notebook, and if you want to do more, take a double from the middle.
- We arrange it vertically. The upper left edge is pressed to the right, then the right to the left.
- You got figuratively saying “house”. There is an unused strip of paper, we bend its edges to the base of the “roof”.
- The result was a trapezoid. We wrap it inside the formed pocket.
Done! Surely, you will not have difficulty with how to fold an envelope in a triangle, as in wartime.
Important! It can also be made of colored paper and decorated with an applique of homemade flowers cut from the same material.
Such letters in the war years were convenient in that they did not need to be sealed, because they underwent strict censorship before they were sent, they were re-read. Such an article would be a great congratulation for our veterans on Victory Day, if you write a few words of gratitude in advance.
Important! If you presoak a sheet of paper in instant coffee, then after drying, it takes on an old look.
When we need to congratulate someone, the question often arises: what to give? The best way out would be a gift in the form of money. They are never superfluous, and in this way you will avoid an unpleasant situation by presenting an unnecessary thing. But how to present them? Pulling out of your pocket or wallet will be embarrassing, and indecent. But putting it in a beautiful envelope made by yourself can pleasantly surprise the congratulated.
We will need only a square sheet of paper with which we do this procedure:
- If you nevertheless took a rectangular one, then take the corner of the short side and connect it to the long one. What is left must be cut off.
- Fold in half so that we get a triangle.
- We fold the two lower corners again, but do not draw a line, just mark the middle.
- We unfold, position it so that the fold is horizontal, press the lower corner to it, smooth it.
- Turn up again.
- We bend the left corner a little further, about half a centimeter to the already outlined middle. We do the same with the right one.
- To prevent the envelope from breaking up, insert the curved side parts into one another.
- Close it on top.
Important! To prevent the product from disintegrating, you can glue the side parts with glue.
Soldier triangle, How to make an envelope out of paper.
I am reading a letter from a soldier that I was my grandfather ... A decayed triangle, worn long around the edges ... I don’t remember it: my grandfather died before Victory. But I found a letter from my grandmother in an old box.
Good afternoon dear friends!
How many years have passed since the end of World War II! However, the echoes of the war still reach us in the form of old military equipment, funnels from bombs, forgotten shells, graves of unknown soldiers and living veterans. Soldier letters are another reminder of that difficult time. The soldiers wrote on sheets and scraps of paper.
All the soldiers knew how to fold a letter into a triangle. Relatives kept them carefully in boxes, knots. Now, reading these letters, we can only imagine how terrible people lived in the war.
Soldiers threw triangles into mailboxes constructed from improvised means, military postmen, risking their lives, processed letters at the field station with stamps, packed them in bags and sent them to the base, from where letters were delivered to the addressees by train. How many kilometers under the bullets of the Nazis went “triangles”, and everyone knew the price of such welcome letters!
On the eve of the great holiday of May 9, we have prepared a number of workshops for you: How to make a carnation, how to make a paper tank, how to make a brooch from St. George’s ribbon.
Today we will make the Soldier Triangle - this is how soldiers sent letters from the front to their relatives and loved ones.
How to fold a soldier's letter
"Craftswoman" will show you how to make an envelope out of paper without glue with your own hands. Master - class channel "Clever Lisa"
For work, we need a regular notebook sheet.
Bend the corner to the edge of the leaf,
We bend the second corner.
At the bottom there was a rectangle, bend it and bend it again, having worked out the fold line.
We bend the two lower corners as shown in the figure.
Now we need to shove these corners inside.
In this way.
Such a letter does not expand and will reach the addressee safe and sound.
How to fold a letter in a triangle? History of Soldier Messages
Many years have passed since the end of World War II. Nevertheless, her echoes still reach us. These are the graves of unknown soldiers, and fragments, and shells left on the battlefield, and funnels from bombs, and the memory of surviving veterans. Soldier letters are another reminder of those terrible years. They wrote them on simple pieces of paper. Each war veteran knew how to fold a letter into a triangle. They were kept by relatives in treasured boxes, knots, scarfs. They knew how to fold a letter into a triangle at home. Now, rereading these lines, we can imagine with horror how terribly people lived during the Black War ...
How to fold a letter in a triangle? Field mail of past years
So, how to fold a letter into a triangle, they knew in every family. And until now, these messages, yellowed from time to time, written in pencil, are stored as a memory of our heroes. As people were waiting for letters from the front! These triangles are one of the main symbols of that terrible, formidable era. Not to lose each other to people only military field mail helped. In each front-line administrative center, sorting points were created. The signalmen worked hard and hard in terrible conditions.
The path of the "triangles"
Yes, times were just awful. Delaying correspondence or delivering it for other purposes was considered an official crime. Envelopes and postcards, of course, were not enough. Publishers, of course, began to produce them in considerable numbers. However, in the first place, ammunition, canned food, and rusks were primarily delivered. At that moment, it was thought up how to fold the letter into a triangle. The people called this message soldier.
Frontline workers threw letters into mailboxes constructed from improvised means and fortified in convenient places. The postman selected triangles, secrets and postcards daily. At the field station, they were processed with calendar stamps, packed in bags and sent by transport to the base. From there, correspondence was transferred to sorting points and then followed in mail cars. Hundreds of kilometers under the enemy’s bullets passed “triangles,” and everyone knew the price!
Letters from the front, happy and sad
With what impatience the relatives and friends of the news were waiting! Before folding the front-line letter into a triangle and sending it home, the soldier carefully thought over its contents. I did not want to upset my relatives, but the correspondence was not always happy. Many hoped that the terrible government envelopes came by mistake. Wives, children and mothers so wanted to get a touching "triangle", reporting that their soldier was alive and well ...
Important historical source
Today, in almost every museum or archive, researchers can find a soldier's letter-triangle. How to fold it, everyone knew at that time. Genuine anxiety and love for loved ones are felt in each of them. Dreams of victory, a description of front-line life, hope for a peaceful, happy future - all this creeps to tears when viewing old triangular letters. Lines of comrades who died in the war, a desire to avenge them, a thirst for life - these were the messages that they carried to their families, incredibly touching and sad.
Even the kids coped
Even the kids knew the best way to fold the letter into a triangle so that they could send their father to the front. It did not stick. Before writing a letter, it was necessary to fold a triangle from a blank sheet. They met, even inscribed on pieces of newspapers.
Initially, it was necessary to write the address. The back side was marked by a line or a dotted line along the edge. It remained clean so that postal workers could make notes there. If the hero died, an appropriate entry was made here, and the letter was returned to the addressee. The address side in this case was crossed out.
Next, the sheet unfolds. The letter itself was written. The text was placed so as to fill all the empty spaces on the sheet, except for the reverse and address surfaces.
If for some reason a soldier ended up in another unit, in the infirmary or in the hospital, a new address was indicated on the clean side of the triangle. Some letters could “walk” for years and found a soldier only a few years after the end of the war.
Frontal “triangles” were also written on pages torn from school notebooks. They were issued during the war in a row, the pages were numbered. Of course, it was possible to buy a notebook, but they were rare in stores. Therefore, they wrote messages in a neat, small handwriting, trying to save as much space as possible for the most important news.
The soldier's “triangle” is the so-called echo of war. The surviving letters make us tremblingly think about that terrible time, about Soviet heroes, about the tremendous importance of the support of loved ones, expressed in warm words written on paper with our own hands.
* mentally plus solution *
Geometry ... but I could also do it at school ...> _
Sheet A4 (lay horizontally) -> in half ->:
(1st half) we divide one of the obtained sides into 4 equal parts -> 1 4 bend, (2nd half) divide into 8 identical parts (in half-> each half in half -> from the received parts in half), bend 3/8
Photo: http: //s001.radikal.ru/i194/1002/e1/cec04904c6f0.jpg
then turn to the other side (it will be more convenient)
Now we add the received in half, a new center is formed, then each received part is cut in half again (to the new center)
and further as shown at www.origami.ru/lab/tech/vl02.htm. Here is the result s002.radikal.ru/i198/1002/b3/163885699fed.jpg
It is necessary to simplify the task.
We have easy access angles of 90 and 45.
You need to get 60.