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24 March, 19:44

A shoe box measures 15 in. By 7 in. By 41/2 in. What is the surface area of the box?

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Answers (2)
  1. 24 March, 20:12
    0
    Surface area for a cuboid of length, l, bredth, b and height h.

    = 2 * (lb + bh + lh)

    for 15 by 7 by 4 1/2 = 15 by 7 by 4.5

    Surface area = 2 * (15*7 + 15*4.5 + 7*4.5)

    = 2 * (105 + 67.5 + 31.5)

    =2 * (204) = 408

    Surface area of box = 408 in²
  2. 24 March, 21:44
    0
    Multiply them all together 15*7*4.5=472.5
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