Cuboid (also known as cuboid) is a regular quadrangular prism with rectangular bottom (or a regular parallelepiped with rectangular upper and lower bottom). It consists of six faces, the opposite faces are equal in area, and there may be two faces (four faces may be rectangular, or all six faces are rectangular) that are square.

A cuboid is a right prism with a rectangular bottom. A cube is a special kind of cuboid. A cube is a cuboid with six sides all square.

Each rectangle of a cuboid is called the face of the cuboid, the line where the face intersects the face is called the edge of the cuboid, and the point where the three sides intersect is called the vertex of the cuboid. The sum of the six areas of a cuboid is called the surface area of a cuboid. The volume of a cuboid is the unit of measurement of a cuboid, which is equal to the product of its length, width and height.

Technical terms of volume and geometry. When the space occupied by an object is a three-dimensional space, the size of the space occupied is called the volume of the object. The international unit of volume system is cubic meters. One-dimensional space objects (such as straight lines) and two-dimensional space objects (such as squares) are all zero volumes.

China, the first mathematician in the world who worked out the correct formula for calculating the volume of a sphere, was Zu Chongzhi in the Southern Dynasties, about a thousand years earlier than Europeans. He also carefully studied the art of celestial arithmetic (astronomical mathematics) and refined the calendar of the Ming Dynasty. After his repeated requests, it was officially promulgated on 5 10. He also made bronze sundials (an instrument for measuring the time from the shadow of the sun), clepsydra and other precision observation instruments, which were adopted by later generations.

Volume, the size of the space occupied by an object is called the volume of the object. The international unit of volume system is cubic meters. The volume of a solid object is a numerical value that describes the space occupied by the object in three-dimensional space. One-dimensional space objects (such as straight lines) and two-dimensional space objects (such as squares) have zero volumes in three-dimensional space.

Volume formula is a formula for calculating volume, that is, a mathematical formula for calculating the volume of various geometric shapes. For example: cylinder, prism, cone, platform, sphere, ellipsoid, etc.