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26 January, 17:08

The perimeter of a rectangle is 51cm fin the length and width of the length is twice the width

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  1. 26 January, 17:37
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    The perimeter is found by multiply multiplying the length by 2 and adding it to the width multiplied by 2.

    Perimeter = 2L + 2W

    The length is given as twice the width which would be written as 2W

    Now you have P = 2 (2w) + 2w

    The perimeter is given as 52 cm:

    51 = 2 (2w) + 2W

    Simplify:

    51 = 4w + 2w

    51 = 6w

    Divide both sides by 6:

    w = 51/6

    w = 8.5

    The width is 8.5 cm

    The length is 2w = 2*8.5 = 17 cm
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