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8 November, 12:12

Joe wants to wrap a present for his mom the box is a rectangular prism with sides 5.6 cm, 7.9 cm and 8.6 cm if Joe doesn't want to waste any paper how much paper will he need?

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  1. 8 November, 13:02
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    160.34 cm2 of paper

    Step-by-step explanation:

    To know how much paper Joe will need, we need to find the total area of the rectangular prism.

    The prism has 6 faces, and their areas are:

    face 1 and 2: 5.6 cm * 7.9 cm = 44.24 cm2

    face 3 and 4: 5.6 cm * 8.6 cm = 48.16 cm2

    face 5 and 6: 8.6 cm * 7.9 cm = 67.94 cm2

    The total area of the prism is:

    Area = 44.24 + 48.16 + 67.94 = 160.34 cm2

    So Joe will need 160.34 cm2 of paper.
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