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18 September, 20:02

Justin wanted to wrap his moms birthday present shaped like a rectangular prism with pretty paper. The box is 2.1 feet long, 2.7 feet wide, And 3.2 feet high. What is the total surface area of the box?

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  1. 18 September, 23:34
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    42.06 ft²

    Step-by-step explanation:

    2 sides = 2 (2.7 ft * 3.2 ft) = 2 * 8.64 ft² = 17.28 ft²

    Front + back = 2 (2.1 ft * 3.2 ft) = 2 * 6.72 ft² = 13.44 ft²

    Top + bottom = 2 (2.1 ft * 2.7 ft) = 2 * 5.67 ft² = 11.34 ft²

    Total area = 42.06 ft²
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