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4 February, 17:00

The length of a rectangle is twice its width.

The perimeter of the rectangle is 42 cm.

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  1. 4 February, 17:20
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    2 (x+2x) = 42

    or, 6*=42

    or x=42/6

    or x=7cm

    width = x=7cm

    length=2x=14cm
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