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Find the dimensions of the following rectangles:

Dimensions Area Perimeter
9 20
16 20
21 20
24 20
25 20

Draw the rectangles.
What do you notice about the shapes of rectangles with a fixed perimeter as their areas increase?

Find the dimensions of the following rectangles:

Dimensions Area Perimeter
24 20
24 22
24 28
24 50

Draw the rectangles.
What do you notice about the shapes of rectangles with a fixed area as their perimeters increase?