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4-76.

For each of the following area models, determine the dimensions (length and width) and write the area as a product and as a sum.

  1. Generic rectangle

    top edge left blank

    top edge right  

    left edge

    interior left

    interior right blank

  • Find the length and width of each small rectangle.

    Generic rectangle

    top edge left

    top edge right 

    left edge

    interior left

    interior right

  1. Generic rectangle

    top edge left  

    top edge right blank

    left edge top

    interior left top blank

    interior top right

    left edge bottom blank

    interior left bottom

    interior right bottom blank

Follow the steps in part (a).

Generic rectangle

top edge left

top edge right 

left edge top

interior left top

interior top right

left edge bottom

interior left bottom

interior right bottom