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1 June, 20:23

If the perimeter is 74mm and the width 16mm what is the length

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  1. 1 June, 20:32
    0
    P=2w+2l

    74=2 (16) + 2l

    74=32+2l

    42=2l

    21=l

    The length is 21 mm.
  2. 1 June, 20:33
    0
    p=2*W+2*L (in Rectangle or square) ⇒74=2*16+2*L ⇒ 74-32=2*L⇒ 42=2*L⇒ L=21mm
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