Eight circles, labeled with either the radius or the diameter, ask students to find the circumference using C = πd or C = 2πr. Watch for diameters, which must be halved first for area.
Click on the image to open the Circumference of Circles PDF. Print it to use the worksheet. The answer key is on page 2.
Circumference of Circles
Use this free 7th grade math worksheet from Teaching Squared. Find more in Geometry Worksheets and 7th Grade Math Worksheets.