A cuboid is a three-dimensional geometric shape with six rectangular faces. It has twelve edges and eight vertices, making it a type of polyhedron. The opposite faces of a cuboid are equal in size and shape, and it can be defined by its length, width, and height. Common examples of cuboids include boxes, bricks, and buildings. Cuboids can be classified into two types: rectangular cuboids and square cuboids. A rectangular cuboid has different lengths for its sides, while a square cuboid has equal lengths, resembling a cube. The volume of a cuboid is calculated by multiplying its length, width, and height, represented by the formula Volume = length × width × height.