Cube surface area with side 1 equal to 6
A cube (or hexahedron) is a regular polyhedron that consists of polygons that are squares.
Cube surface area formula 
where a is the side of the cube
where d is the diagonal of the square
where D is the diagonal of the cube
where Sh is the area of the inscribed ball
where V is the volume of the cubeSolution:
S = 6a2
= 6·12
= 6·1
=
6
a: Cube surface area with side 1 equal to 6