NAME ______________________________ DATE _______________

ACTIVITY

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Doubling Squares

Use your answers on page 559, Building a Sequence of Squares, to record the perimeters of the following squares:

• 5 Perimeter of 2-inch square _______________

  Perimeter of 4-inch square _______________

• 6 Perimeter of 3-inch square _______________

  Perimeter of 6-inch square _______________

Use the information in Problems 5 and 6 to answer these questions:

• 7 When you double the sides of the square, how does the perimeter change?

• 8 Why does the perimeter change in this way? Use drawings or other representations to show why this change occurs and explain your thinking. Write a rule for what happens using words or numbers.

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