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15 September, 07:26

If a 4 * 16 rectangle has the same area as a square, what is the length of a side of the square?

a. 8

b. 6

c. 10

d. 12

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Answers (1)
  1. 15 September, 07:33
    0
    Area of a rectangle (Ar) = Length (L) x width (w)

    Area of a square (As) = side (s) squared

    Ar = As

    4 x 16 = s²

    64 = s²

    √64 = √s²

    + / - 8 = s

    Since length of a side cannot be negative, disregard the - 8

    s = 8

    Answer: a. 8
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