SOLUTION: A sewing box is 24 cm by 18 cm by 6 cm. What is the total surface area?

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Question 638253: A sewing box is 24 cm by 18 cm by 6 cm. What is the total surface area?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
The bottom and the top surfaces are both
24+ x +18+
Both sides are +18+ x +6+
Both the front and the back are +24+ x +6+
So I have:
Total surface = +2%2A24%2A18+%2B+2%2A18%2A6+%2B+2%2A24%2A6+
Total Surface = +864+%2B+216+%2B+288+
Total Surface = 1368 cm2