Total surface area of the cube having side 3 cm is____
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Each face is a square of area a2, where a is the length of an edge of the cube. So, the total surface area is given by 6(a2) = 6a2. Let's find the TSA for the given cubes: a = 3cm ⇒ TSA = 6(a2) = 6(32) = 6(9) = 54cm.
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