1, the preparation material is square, first fold the material in half.

2. Symmetric patterns are mainly folded parts, and several folds determine how much the symmetry axis is folded.

3, so 60% off is good.

4. Draw a pattern and mark the cut part.

5. Cut the diagonal.

6, marked with the axis of symmetry, a * * * four.

7. Cut the axisymmetric figure.

Axisymmetric figures include circles, squares, isosceles triangles and ellipses.

Axisymmetric figure, a mathematical term, is defined as a figure folded along a straight line in a plane, and the parts on both sides of the straight line can completely overlap.

A straight line is called the axis of symmetry, and the axis of symmetry is represented by a dotted line. At this time, we also say that this figure is symmetrical about this line.

Judgment method:

1. If two figures are symmetrical about a straight line, then the symmetry axis is the perpendicular to the line segment connected by any pair of corresponding points.

2. Similarly, the symmetry axis of an axisymmetric figure is the median vertical line of a line segment connected by any pair of corresponding points.

3. The distance between the point on the vertical line of the line segment and the two endpoints of the line segment is equal.

4. Symmetry axis is the set of points with equal distance to both ends of the line segment.

Paper-cut art composition:

Paper-cutting is an art, but few people understand it. Now I'll introduce you to paper cutting!

Paper-cutting is one of the most popular folk arts in China. According to textual research, it is confirmed that its history can be traced back to BC 1600. In the past, paper-cutting was often used in folk activities and religious ceremonies. Nowadays, paper-cutting is more used for decoration and can also be given as a gift to friends and relatives.

Due to the different regional customs, history and culture, there are different styles of paper-cutting all over the country, and Foshan paper-cutting in Guangdong is one of them. Foshan paper-cutting has a long history, which originated in the Song Dynasty and flourished in the Ming Dynasty. Since the Ming Dynasty, Foshan paper-cut art has been widely circulated among the people and exported to Southeast Asian countries.

According to different raw materials and methods, Foshan paper-cut can be divided into nine categories: copper lining, paper lining, paper writing, copper writing, silver writing, woodcut overprint, copper chisel, dyeing and solid color. Paper-cutting can be divided into two different ways of paper-cutting expression: negative engraving and positive engraving, which can cut people, flowers and animals.