Circle Circumference Practice

Find each circle’s exact circumference using its radius. Write answers in terms of pi.

Math7th Grade

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01 Use each circle diagram to find the exact circumference in terms of pi.

Use the circle diagram. Give exact answers in terms of pi where requested.

1. A circle has radius 6. Find its exact circumference in terms of pi.
r=6
2. A circle has radius 4. Find its exact circumference in terms of pi.
r=4
3. A circle has radius 2. Find its exact circumference in terms of pi.
r=2
4. A circle has radius 9. Find its exact circumference in terms of pi.
r=9
5. A circle has radius 7. Find its exact circumference in terms of pi.
r=7
6. A circle has radius 5. Find its exact circumference in terms of pi.
r=5
7. A circle has radius 3. Find its exact circumference in terms of pi.
r=3
8. A circle has radius 10. Find its exact circumference in terms of pi.
r=10