Find the circumference

1. A circle with diameter 3 m

2. A circle with radius 5 in

3. A circle with radius 7 m

Find the radius

4. A circle with the diameter 7 m

5. A circle with the circumference of 24 m

6. A circle with the circumference of 15 cm

7. A circle with the circumference of 89 m

Find the perimeter of each figure.

8.

12. Find circumference of a ball if the diameter is 7 cm

13. It takes 15 inches of string to fit around a circular plate. What is the radius of the plate?

14. The road makes a circle around the outside of a city. It takes 24 miles to drive around the city. Find the radius of the city.

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