# Find the surface area and the sum of the lengths of the edges of the cube, edge 11 cm.

August 22, 2021 | education

| Given: the length of the edge of the cube = 11 cm.

a) The cube has 6 faces, each of which is a square.

To find the surface area of a cube, we first need to find the area of one face, and then multiply that number by 6.

S (cube) = (11 * 11) * 6 = 121 * 6 = 726 (cm ^ 2)

b) The cube has 12 edges. Knowing how long one edge has, we can find the sum of all the edges of the cube by the following action:

12 * 11 = 132 (cm)

Answer: a) 726 (cm ^ 2)

b) 132 (cm)

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