what is the defination of cube
Answers
Answer:
A cube is a region of space formed by six identical square faces joined along their edges. Three edges join at each corner to form a vertex. The cube can also be called a regular hexahedron. It is one of the five regular polyhedrons, which are also sometimes referred to as the Platonic solids.
Parts of a cube
Face Also called facets or sides. A cube has six faces which are all squares, so each face has four equal sides and all four interior angles are right angles. See Definition of a square. In the figure above, drag the 'explode' slider to see the faces separated for clarity.
Edge A line segment formed where two edges meet. A cube has 12 edges. Because all faces are squares and congruent to each other, all 12 edges are the same length.
Vertex A point formed where three edges meet. A cube has 8 vertices.
A cube showing the edges, vertices and faces
Face Diagonals Face diagonals are line segments linking the opposite corners of a face. Each face has two, for a total of 12 in the cube. The length of the face diagonals is given by the formula
face diagonal = √ 2 s 2
where s is the length of one side (edge). Since the faces are squares, this is the same as the diagonal of a square.
Space Diagonals Space diagonals are line segments linking the opposite corners of a cube, cutting through its interior. A cube has 4 space diagonals. The length of the space diagonal is given by the formula
space diagonal = √ 3 s 2
where s is the length of one side
Answer:
cube the product of a number multiplied by its square, represented by a superscript ;a symmetrical three-dimensional shape, either solid or hollow, contained by six equal squares.