The length of all edges of the cube is 51.6 cm. Calculate the total surface area of the cube.
August 28, 2021 | education|
The cube has 12 edges.
Since the length of all the edges of the cube is 51.6 cm, the length of one of its edges is:
a = 51.6 / 12 = 4.3 (cm).
Let’s calculate the surface area of the cube:
S = 6 * a ^ 2 = 6 * 4.3 ^ 2 = 110.94 (cm²).
Let’s round the answer to tenths:
110.94 cm² ≈ 110.9 cm².
Answer: 110.9 cm².
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