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

September 15, 2021 | education

| Determine the surface area of the cube. To do this, find the area of one face and multiply by 6 (the cube has 6 faces).

S = 11 * 11 = 121cm2.

The surface area of a cube is:

121 * 6 = 726cm2.

Determine the length of all edges.

The cube has 12 faces. Multiply the length of one face by the number of all faces:

11 * 12 = 132cm.

Answer: the length of the edges is 132 cm, the surface area is 726 cm2.

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