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26 March, 08:06

Helena is an engineer that designs packaging for new products. She designed a box in the shape of a rectangular prism with dimensions of 10 inches by 7 inches by 4 inches. What is the surface area of the box?

a. 138 square inchesb. 276 square inchesc. 280 square inchesd. 441 square inches

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Answers (1)
  1. 26 March, 11:10
    0
    276

    Work

    2x10x7=140

    2x10x4=80

    2x7x4=56
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