How to draw a circle freehand. Simple geometric shapes. Draw circles of different sizes without auxiliary objects

How to draw smooth circle without a compass?

You can take a pin. Tie a thread to it on one side, and on the other, tie a pencil at the required distance (radius). Place the pin in the center of the future circle. And holding the pencil strictly vertically, draw a circle. In this way you can draw fairly large circles.

When I was at school and when I didn’t always have a compass at hand, I often resorted to simple way. He took a pencil and, for example, a pen that does not write and will not leave a dot in the center of the circle, in one hand, squeezed it approximately the way the Chinese hold chopsticks when eating, and simply rotated the sheet of paper or notebook. The result was an almost perfect circle. Maybe that’s why, when I picked up chopsticks for the first time, they told me that I had been using them all my life anyway. Here's the story.

The easiest way to draw a circle is using any round-shaped object. for example plates, coins and so on, you just need to circle this item. You can also use a stencil and find a circle of the diameter you need.

But when my compass broke, and there was nowhere to get it in the evening, but I needed to build, I took a simple pencil, drew serifs on the nm with a pin, as if depicting a radius. And I went to draw from the intended center at certain intervals of about 10-15 degrees , and putting down points, at the end of the radius pencil there will be points on the circle. And how many there will be, how much patience you have. It helped so as not to grab a couple, the circle was drawn, and the problem was solved. Why didn’t you use round glasses? They were too big for a notebook, but There were no such coins; 5 kopecks were too small.

Without a compass, a circle can be drawn evenly using some round object; a glass, mug, tube of cream, etc. are suitable for this.

You can also take paper or cardboard, fold it 4 times and cut a semicircle around the edge. When you unfold the paper, you will get a circle. Circle it and that's it.

There are several options: you can find some object with a round bottom (a cap from a pill, nasal drops) and trace it around the bottom with a pencil. You can take a ruler, make the center of a circle and measure even distances from this center, then connect the dots.

It depends on how big you need to draw a circle.

If it’s small, then a coin, button, or tablet will do.

If it is larger, then you will need a glass, plate, pan, lid, cream jar.

You can also use a pushpin, to which you tie a thread of the required length and a pencil or chalk to the other end of the thread. Stick the button into a sheet of paper and draw - you will get an even circle if the thread tension is uniform.

Use something round of suitable diameter, a saucer, a mug, or another object on which you can draw a circle. Well, circle this item accordingly. This will create a straight line. Only in this case, if the diameter is important, then it may be difficult to select an item. There are also special rulers-patterns. There are usually several circles of different diameters. If you have such rulers, you can use them.

And I usually take into account the cells from a notebook for mathematics, adhere to even symmetry, etch the dots, and then smoothly draw a circle along them, they always drew like that at school before...)) Didn’t you draw like that yourself?..)

HOW TO CALCULATE THE RADIUS OF A CIRCLE.

What is it for, this radius calculation? To draw a circle, we need to know radius this circle - that is, the distance from one leg of the compass to the other.

Let’s say we need to draw the circumference of the bottom of a Panama hat, and all we know is the circumference of the child’s head. How wide should the legs of the compass be spread in order to ultimately obtain a circumference that matches the size of the baby’s head?

Or we need to draw the circumference of a circle skirt, knowing only that the circumference should perfectly match the circumference of our waist.

Now, so that everything is extremely clear and understandable, Let's look at 2 specific cases that are most often encountered in the work of seamstresses.

This is the calculation of the radius of the bottom of a Panama hat. And calculation of the radius on the circle skirt pattern.

So, let's go...

I beautifully painted this story in pictures directly with the text-reasoning. To make the whole sequence of brain work clear.)))

Means, to find out the radius, we need to divide our circumference of the baby’s head by 6.28.

We take a mobile phone, find a calculator in it and divide our 42 cm head circumference by 6.28 - we get 6.68 cm = that is, 6 cm and 6 mm. This is the radius.

This means that we need to move the legs of the compass apart to a distance of 6 cm 6 mm. And then the circle we drew will be equal to 42 cm - that is, it will lie evenly on the child’s head (just don’t forget to weigh it down by retreating 1 cm for seam allowances).

Situation two - you need to draw the circle of the circle skirt. All we know is the waist circumference and the length of the skirt that we ultimately want to get.

In the drawing of the sun skirt there are 2 circles. The small one (inner) should lie flat on our waist. That is, the length of this circumference should coincide with the waist circumference. The waist circumference is 70 cm, which means the circumference should be 70 cm (well, maybe there are all sorts of centimeters here and there in the form of a seam allowance, or some other additional trim in the form of a belt or yoke)

This means we need to find out what radius to draw the circle so that the resulting circle is the length we need 70 cm.

In the picture below I have described everything and how to calculate the radius of a small circle and how to then find out the radius of a large circle.

And when a small circle is drawn. All we need is to add the desired length of the skirt to the small radius - and we get a large radius for the large circumference of the skirt edge.

Now we've sorted out the calculations. We will sew skirts and hats - I will send you to this article.

Now let's figure out how to draw a circle of any size without a compass.

HOW TO DRAW A CIRCLE WITHOUT COMPASSES.

Here below I have illustrated three methods with three pictures. I hope that everything is clearly drawn and written.

Yes, this is a quick way - but you need to make sure that the pencils do not move to the side. We change the angle of the pencil's radius. Or it is necessary for one person to hold one pencil exactly, and the other to draw exactly perpendicularly with a second pencil.

In general, the lower the thread is tied, the more accurate the circle will be. That's why some people use small pins. The error when the pin is tilted to the side is small, and can be neglected when sewing.

And yet, the surest way to draw an exact circle without a compass is with the help of an ordinary ruler and pencil. This is what it looks like:

And then in a circle, we move the centimeter (like the hour hand on a watch) and mark points at the same distance - that is, on the same number on the centimeter tape. Instead of tape, you can use string with a mark on it - the main thing is to make sure that the string does not stretch at all.

Well, that’s all - another gap in knowledge has been eliminated - now you can swing both a circle skirt and a Panama hat - we know how to calculate radii.

Olga Klishevskaya, especially for the “Women’s Conversations” website.

How to construct a circle?

A circle is an ideal line that cannot always be drawn exactly. There is a special device for this - a compass. It allows you to avoid mistakes and construct a circle perfectly and accurately. However, a compass is not always at hand.

Let's take a closer look at how to construct a circle using and without a compass.

How to construct a circle with a compass

But you don’t always have a compass with you. How can you draw a circle using available tools? Let's give some examples.

How to construct a circle without a compass

Perhaps the simplest and at the same time requiring additional costs method is to trace something round, be it a saucer, a watch, a coin or something else. But round objects may also not be nearby.

Then you can try the second option, which everyone can probably do. First you need to draw a square, and only then draw a circle from it by truncating the corners. Well, the third option, which can be used both on a blackboard with chalk and in a notebook with a pencil, is using thread. You can make an imitation of a compass and tie a thread to a pencil, also measure the required diameter and, attaching the thread to a sheet, draw a circle, as in the case of a compass.

The question is important not only for beginners, but sometimes also for experienced artists. Understanding how to draw a circle correctly in perspective, we can draw huge amount items, not just pots and plates.
All in all short summary: Usually we rarely see round objects from the front. For example a plate like this

We see much less often than this.

Therefore, we need to understand how to correctly depict a plate in a perspective horizontal plane. There is a simple diagram for this.

The most important thing is on the left. We see ovals and the horizon line, relative to which we usually draw all objects. At the level of the horizon line, the oval either turns into a line or becomes very narrow. The higher or lower, the rounder the oval becomes, all the lines that are closer to us according to the law of perspective will be thicker, everything further away will be thinner. If the oval is much lower than the level of vision, it can become almost round. This can be seen very clearly by taking a roll of tape, your ideal medium for practicing this skill. We raise the skein to eye level - ideally we will see a rectangle, raise it higher and lower and immediately see clearly all the changes.
In the vertical plane, the story is absolutely the same, only the diagram must be turned 90 degrees.

Thus, all plates and pots become subject to us, we look at the previous picture of the plate, taking into account new knowledge.

You can draw another oval to show the thickness of the plate, the final result depends on your observation skills. The skill of drawing ovals is very well trained in detailed drawing of simple objects; the same roll of tape, for example, works great at first.

There is another common mistake when drawing ovals. Many people draw two arcs instead of an oval. This should not be allowed, even if your oval is very narrow; we always draw roundings in the corners.

Over time, you will become great at finding perspective in almost any object.

Well, after you get tired of circles, you can try drawing squares - the principle is the same. There is indeed a nuance with the vanishing point, but more on that another time.

I hope you no longer have problems with the circle in perspective and your drawings will be correct and accurate. In addition to this post, you can also see

Knowing how to create a circle is not a life skill. And yet, sometimes you need to know how to draw a circle when you don’t have a compass or some kind of round object at hand. Therefore, methods for drawing different circles will be proposed below.

An even circle - what to do if there is no compass

It is useful for everyone to know how to draw a circle without a compass. Usually this item is not at hand. A student who left home may find himself in this situation. necessary tools for drawing, which must have a scheduled lesson. Or an adult who, for some reason, urgently needs to draw an even circle. What to do in these situations? For example, schoolchildren can replace a missing accessory with a protractor, which is often found in a pencil case. Just attach it to a piece of paper, find the center on the straight part and put a dot. This place is considered the center of the circle. Then you need to trace a semicircle along the inside, rotate the protractor 90° and carefully draw another third of the circle. After this, repeat the rotation of the tool again and finish drawing the rest of the figure.

If you have not been a student for a long time, which means you do not have a pencil case with drawing tools at hand, then you can correct the situation with the help of a CD. It makes it easy to create a shape both small (if you trace the inside of the disk) and large (if you trace the outer part of the disk). For office workers in a similar situation, a glass used for water will help. Just place it on paper and draw along the bottom contour with a pencil. Thus, we are convinced that it is possible to draw a circle without a compass, using improvised objects for this.

Ways to draw circles without using additional objects

How to draw a circle if you don’t have drawing tools or other auxiliary things at hand? Everything is not as complicated as it seems at first glance. Place and fix one hand on the paper, while making sure that the little finger is the center of the planned circle. Twist the sheet with your other hand and see what happens. smooth circle. Draw a pencil along the resulting contour. To draw a circle with a larger diameter, you need to bend your little finger, as if you are trying to clench a fist. Next, the procedure is repeated, as with a smaller circle, twist the sheet and draw the boundaries of the circle. If you need to create an even larger circle, then position your hand so that it touches the wrist bone to the sheet. It is recommended to use soft pencils for drawing circles.

These methods are considered easy and simple. They help out when you don't have a compass at hand. The main thing is to be able to hold your hand straight and so that it does not move.

Draw a circle using a ruler

For those who have a ruler at hand, the following method of creating a circle will be useful. You need to attach a ruler to a sheet of paper; at this point there will be the center of the circle. Place another mark next to the number indicating the radius. Then you need to place the third point; to do this, slightly move the edge of the drawing tool, but so that the 0th mark remains in place, and place a notch above the second mark.

Repeat these steps until you end up with a circle. It will consist of dotted lines. The more small lines there are, the easier it is to draw a straight line. This method is easy, but quite long.