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25 June, 06:32

Find the width of a rectangle if the length is 12 centimeters and the perimeter is 42 centimeters

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Answers (2)
  1. 25 June, 07:44
    0
    X - width

    y-length

    y=12cm

    Perimeter = 2*x+2*y

    Perimeter=42cm

    42=2*12+2x

    42=24+2x

    2x=18 / : 2

    x=9
  2. 25 June, 09:50
    0
    Perimeter = (2 x length) + (2 x width)

    42cm = (2 x 12 cm) + (2 x width)

    2 x Width = 42cm - (2 x 12 cm) = 42 - 24 = 18 cm

    Width = 9 cm.
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