Both a circle and a triangle are axisymmetric, right?

It is wrong that both circles and triangles are axisymmetric figures.

Only a circle is an axisymmetric figure. Axisymmetric figure refers to the position of each point on both sides of an axial symmetry. A circle is an axisymmetric figure, because it can be axisymmetric with any diameter as the axis. Triangles are not axisymmetric figures, because generally speaking, triangles have no axisymmetric properties except equilateral triangles. Of course, in some special cases, triangles can also be made into axisymmetric figures, such as isosceles triangles with axisymmetric lines.

Common axisymmetric figures are square and rectangle, which can take a diagonal as the axis of symmetry and the two parts are mirror images of each other; Five-pointed star (five-pointed star), which can take a diagonal as the symmetry axis (from one angle to another), and the two parts are mirror images of each other; An equilateral hexagon can take its center as the symmetry axis, and the two parts are mirror images of each other.

Use of Axisymmetric Graphics

In geometry, axial symmetry can be used to describe many figures in plane and space; Many designers and architects use axisymmetric graphics in their designs. They use the concept of axial symmetry to create a symmetrical, balanced and harmonious visual effect, which is of great help to the structure of products or buildings; The concept of axial symmetry can be used in painting, sculpture and other artistic fields. Many paintings and sculptures are symmetrical. For example, many traditional landscape paintings in China are often symmetrical along the center line.