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29 January, 07:17

A square has side length of 4.3 in. If the area is multiplied by 4, what happens to the perimeter?

a. The perimeter is multiplied by 1/2.

b. The perimeter is multiplied by 4.

c. The perimeter is multiplied by 1/4.

d. The perimeter is doubled.

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Answers (1)
  1. 29 January, 07:37
    0
    Perimeter is doubled

    4.3•4.3=18.49 (area of original square)

    18.49•4=73.96 (area of 4x square)

    Sqrt (74.96) = 8.6 (side of 4x square)

    4.3•4=17.2 (perimeter of original square)

    8.6•4=34.4 (perimeter of 4x square)

    34.4/17.2=2

    2=double
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