1. Sphere: The space geometry of a semicircle rotating by one Zhou Suocheng around a straight line with its diameter is called a sphere.

2. Cylinder: Take one side of the rectangle as the axis, rotate 360 degrees, and the obtained geometry is called cylinder.

3. Cone: Take a right-angled side of a right-angled triangle as the axis and rotate 360 degrees. The resulting geometry is called a cone.

4. Cuboid: Cuboid is a three-dimensional figure surrounded by six rectangles (in special cases, two opposite faces are squares).

5. Cubes: Cubes with equal length, width and height are called cubes.

What are the mathematical figures?

1, spatial graph

Spatial graphics refer to the graphics in three-dimensional space, which are composed of polygons, including cubes, cylinders and spheres. They have a unique appearance and surface, which helps us to understand the matter in physical space.

2. Plane graphics

Plane graphics refer to the graphics on the two-dimensional plane, which are commonly square, regular triangle, circle, trapezoid, diamond, ellipse and so on. These figures have their unique shapes and characteristics, and are widely used in many fields.

3. Geometry

Geometric figures are abstract figures in mathematics, including straight lines, arcs, ellipses, parabolas and cubic curves. They can not only be used to describe all kinds of physical graphics, but also have a wide range of applications in physics, geometry and other disciplines. For example, a circle is a geometric figure. By definition, compasses are usually used to draw circles. The diameter and radius length of the inner circle of the same circle are always the same, and the circle has countless radii and diameters.

A circle is a figure with axial symmetry and central symmetry. The axis of symmetry is the straight line where the diameter lies. At the same time, the circle is a regular infinite polygon, and infinity is just a concept. The more sides a polygon has, the closer its shape, perimeter and area are to a circle. So there is no real circle in the world, and the circle is actually just a conceptual figure.

4, curve graphics

A graph is a graph composed of a series of curves such as sine curve, cosine curve and exponential curve. They are not only used to describe graphics in two-dimensional and three-dimensional space, but also play an important role in many mathematical fields.