How to make a Lelo triangle, how to draw a Lelo triangle

1.Start by drawing a regular triangle abc.

<>4.Then take the point B of the regular triangle ABC as the center, the side length is the radius, pass the point A, and draw a circle, as shown in the rough drawing of Ye Song:

5.Finally, remove the redundant graphic parts of Sakura. In this way, the Leylo triangle is drawn.

Precautions. The Lelo triangle, also known as the "Lelo triangle", "Lurox triangle", and "arc triangle", is a special triangle that refers to the vertex of the regular triangle as the center of the circle, and the length of its side as the radius as the arc, and the curved triangle composed of these three arcs is called the Lelo triangle.

Cut-to-width curves and cut-to-width properties.

Concept of Fixed-Width Curves: Curves with (circle-like) fixed-width curves are called fixed-width curves.

Fixed-width is geometrically understood as placing a circle between two parallel lines so that it is tangent to the two parallel lines. It can be done: no matter how the circle moves, it is still within these two parallel lines, and it is always tangent to these two parallel lines.

The Lelow triangle is a typical fixed-width curve.

The monospaced nature of a Lelow triangle is easily demonstrated, and its width is equal to the length of the sides of the constructed equilateral triangle. When the Lelo triangle rotates within a square with sides of its width, the trajectory traveled by each corner is essentially a square.

Area relationship. It can be calculated from the Lebegus integral that the Lelow triangle is the smallest figure that can be formed by the fixed-width curve, and its area is 1 2[ -3 1 2)]s 2, and s is the fixed-width width.

Application of the Lelo triangle.

In San Francisco, USA, there are some municipal manhole manhole covers in the shape of Lelo triangle, and its biggest advantage is that this shape of manhole cover will never fall into the well.

In addition, a device based on a variant of the Lelo triangle that drills square holes, and its "squareness" is very good.

Lelo cannot be used as a wheel, as its center is unstable, with three jumps per revolution. And as a roller, it is quite smooth. Mazda's rotary engine is also based on this principle, as the Lelo triangle is the smallest area in the fixed-width curve.

What is the principle of the Lelow triangle? The foreigner put the water cup on the triangle, and the next scene was magical.

What is a Lelo triangle? Put the water cup on the triangle and push it, and an interesting scientific phenomenon happens.

What is a Lelo triangle? The world of science and technology changes takes you to understand the cold knowledge of popular science.

Triangles are the most stable shapes, and the pyramids, tripods, and so on that we know are all built from triangles, and there's a special kind of triangle.

What is a Lelo triangle? The world of science and technology changes takes you to understand the cold knowledge of popular science.