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5-65.

Find the missing side lengths of each rectangle, (a) and (c) or square (b) and (d). Homework Help ✎

  1.  

     

    To find the area of a rectangle, multiply the length
    by the width.

    Solve for .



  1. Recall the properties of a square. All the side lengths must be equal.

    Since one side is already given, you can conclude that the other side is also cm.

  1. rectangle

    See the help for part (a).

    cm


  1. See the help for part (b).