181 sq cm
Explanation:
Answer:Total surface area of cubes (TSA) = 6a2
(1) a = 3cm
TSA = 6 × 3 × 3, TSA = 54 sq.cm
(2) a = 5 cm TSA = 6 × 5 × 5, TSA = 150 sq.cm
(3) a = 5,5 cm, TSA = 6 × 5.5 × 5.5
TSA = 181.5 sq. cm
we are asked to determine the surface area of a cube that has a side length of 12 cm.
To do that let's remember that a cube has 6 faces and the area of each face is its side length squared. Therefore, the total surface area is the side length squared multiplied by 6:
Solving the operation:
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