1, rectangle: a rectangle is a square with four sides and four corners, two opposite sides are equal in length and the other two sides are equal in length;
2. Square: A square is also a square, with four sides and four corners, but all four sides are equal;
3. Cuboid: it has six faces and twelve sides. The six faces are different in size and the opposite faces are equal in size;
4. Cube: six sides and twelve sides, and the six sides are equal in size;
5. Triangle: It has three sides and three angles;
6. Cylinder: straight, with equal thickness from top to bottom and equal circles from top to bottom.
7. Circle: a figure drawn around a fixed point with a certain length as the distance.
8. Sphere: a round and smooth surface, such as football, basketball and table tennis in life.
9. Pendulum of three-dimensional graphics: Cubes or cubes can be used to assemble three-dimensional graphics with different shapes. In the assembled three-dimensional graphics, some parts can't be seen from one angle, so we should observe them from multiple angles. Small cylinders can be made into large cylinders.