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4 September, 00:40

The length of a 3D rectangle is 8cm greater than the width and the height is half the length. A total of 108 cm of wire has been used the make this framework. What are the dimensions of this box?

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  1. 4 September, 04:20
    0
    L=W+8

    (W+8) W=105

    W^2+8W=105

    W^2+8W-105=0

    (W+15) (W-7) = 0

    W-7=0
  2. 4 September, 04:26
    0
    The dimension is 3d and 8 cm
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