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12. A cube of side 4 cm is cut into cubes of side 1 cm.Find the total surface area of all the small cubes. |
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Answer» Step-by-step explanation: = 64cm³ vol³ of smaller cube = (1cm)³ = 1cm³ total cubes OBTAINED= 64cm³/1cm³= 64 T.S.A of a smaller cube= 6a² = 6×(1cm)²= 6cm² Now TSA of such 64 cubes= 64×6cm²= 384cm² |
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