The surface area of a cube is found with the formula 6a2. Therefore, the surface area of a cube with 7 centimetre edges is equal to 6 x 72 = 6 x 49 = 294 cm2.
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The cube's total surface area is 294cm2
The surface area of a 7 cm cube is 294 cm2
It is: 6*7 = 42 cm2
Six times the area of one face...
Total surface area: 6*7*7 = 294 square units of measurements