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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