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24 August, 00:59

A cube has a surface area of 3750 square feet find the length of one side

Answers (2)
  1. M
    24 August, 02:02
    0
    Surface area of cube = 6a²

    6a² = 3750

    ⇒ a² = 3750/6 = 625

    ⇒ a = √625

    ⇒ a = 25 ft
  2. R
    24 August, 03:17
    0
    Cube means that all sides are the same.

    Surface area is to find the area of a six faces of the cube.

    To find the area f each face you multiply l * w or in this case s*s or s^2

    So ... 6s^2 = 3750

    Divide both sides by 6

    s^2 = 625

    Take the square root of each side

    s = 25 ft.
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