During the previous lessons, you learned about pi, the circumference, and the area of circles. To review what you have learned, watch the animations again.

How much does the circumference and the area of a circle increase when its diameter doubles?

Note: Save the e-Nto your desktop. After you have completed it, prinotebook t it out and submit it to your teacher.

New report! Read about a new report sent to the Conservation Committee.

Note: You will need the new report worksheet.