Find the surface area and the sum of the lengths of the edges of a cube whose edge is 11 cm.

A cube is a special case of a rectangular parallelepiped. The cube is formed by six faces, each of which is a square.

The intersections of the faces are called edges. The cube has 12 of them.

This means that the surface area of the cube will consist of the areas of six faces (squares).

Find the area of one face (square area):

S = a ^ 2 = 11 cm * 11 cm = 121 cm ^ 2.

Find the surface area of 6 faces:

S total = 121 cm ^ 2 * 6 faces = 726 cm ^ 2.

The length of the edges of the cube is:

11 cm * 12 ribs = 132 cm.