What is Cube ?
A cube is rectangular shape solid body having same length, breadth and height is called cube.
1) A cube has 6 square faces
2) When two sides of a square in a cube join together we call it an edge. A cube has 12 edges
3) Where faces of an object join with each other is called vertex
In the below image
6 Square faces in cube are  ABEF, DCHG, BCFG, ADEH, HGEF, ABCD
12 edges in square are  AB, BC, CD, DA, EF, FG, GH, HE, AE, BF, CG, DH
8 Vertex in cube are  A, B, C, D, E, F, G, H

