A cuboid has six faces, namely, the front, the back, the left, the face, the top, and the bottom, so it is called a hexahedron. At the same time, it is also a straight four prism with a rectangular bottom. Each face is a rectangle or square, and the opposite faces are equal.
Must a cuboid be a cylinder
Is a cylinder. Cylinders, which can be divided into cylinders, prisms, cuboids and cubes all belong to prisms, so they are all cylinders.
Cylinder: a polyhedron has two parallel faces with the same size, and the intersection lines of the remaining two adjacent faces are parallel to each other. Such a polyhedron is a cylinder; In addition, columns can also be divided into positive columns and oblique columns.
A cylinder is a geometry formed by taking the straight line of one side of the rectangle as the axis of rotation and rotating the other three sides around the axis of rotation. It has two circular bottoms of the same size and parallel to each other and one surface side. Its side unfolds into a rectangle.
Prism is a common three-dimensional polyhedron in geometry, which refers to the closed geometry that two parallel planes are cut vertically by three or more planes.
If the number of planes used to cut parallel planes is n, the prism is called n-prism. For example, a triangular prism is a closed geometry cut vertically by three planes from two parallel planes.
Is the cuboid a regular prism
A box is not necessarily a regular prism. A regular prism is a straight prism whose base is a regular polygon. A straight prism is a prism whose side edges are perpendicular to the bottom.
Therefore, the box is a straight prism. However, there is no length limit for its length, width and height. If its length, width and height are not equal, then the box is an ordinary straight prism.
If the length, width and height are equal, then it is a regular prism.
What are the differences between a box and a cylinder
1. The shape of a box is different from that of a cylinder: a box has six faces, all of which are planes, all of which are rectangles, and the opposite faces are identical. The cylinder has three faces, the upper and lower faces are planes, and the side faces are curved surfaces.
2. The side area of a cuboid is equal to the area of the front and back plus the area of the left and right sides, that is, length x height x 2+width x height x 2.
The side area of the cylinder=the perimeter of the bottom X height.
3. The volume formula of a cuboid and a cylinder is the same, which is the base area times the height.
What are each face of the box
A cuboid has six sides: front, back, left, right, top, and bottom.
A box is a straight prism with a rectangular bottom. A cube is a special box. A cube is a box whose six faces are squares. Each rectangle of the box is called the face of the box, the line where the face intersects the face is called the edge of the box, and the point where the three edges intersect is called the vertex of the box.
The sum of the areas of the six faces of a cuboid is called the surface area of the cuboid. The volume of a box is a measure of a box. The volume of a box is equal to the product of length, width and height.
