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17 May, 18:13

Louise measured the perimeter of her rectangular scrapbook to be 160 cm. If the scrapbook is 46 cm wide, how long is the scrapbook?

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  1. 17 May, 20:20
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    Perimeter = 2 * Length + 2 * Width

    160 cm = 2 * Length + 2 * 46 cm

    160 cm - 92 cm = 2 * Length

    68 cm = 2 * Length

    Length = 34 cm
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