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25 June, 08:57

Find the perimeter and area of a rectangle of cardboard measuring 18.2 cm by 6.2 cm

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  1. 25 June, 12:44
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    Perimeter = length + length + width + width

    Substitute values in (18.2 is length, 6.2 is width)

    Perimeter = 18.2 + 18.2 + 6.2 + 6.2

    Perimeter = 48.8

    Area = length x width

    Sub in values

    Area = 18.2 x 6.2

    Area = 112.84
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