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11 November, 08:25

A cereal box is 28.5cm by 24cm by 7cm. What area of cardboard makes up the containers surface

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  1. 11 November, 11:34
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    = 2 (Area of top) + 2 (area of side) + 2 (area of front)

    = 2 (28.5 x 24) + 2 (28.5 x 7) + 2 (24 x 7)

    = 1368 + 399 + 336

    = 2103cm^2
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