Circumference Worksheets
Use radius and diameter correctly and leave circle measurements exact in terms of π.
Before you begin
Read labeled dimensions and coordinates. Recall multiplication facts and length units.
Worked example
A circle has radius 7 cm. Find its circumference in terms of π.
- Radius is 7 cm.
- Use C = 2πr.
Answer: 14π cm
Check your result using the method in the example before moving to the next question.
Choose your level
These sets use the same exercise types and number ranges across level labels. Choose a fresh set for additional practice.
- Easy: Start with the preview and follow the worked example.
- Medium: Practice the same exercise types with a fresh numbered set.
- Hard: Use another set to practice explaining and checking your answers.
Questions and answer calculations checked on 2026-09-17. How we check worksheets. Free for personal and classroom use.
Preview and print an easy set
Try six questions below, or choose a full set at your level.
1
A circle has radius 4 cm. Find its circumference in terms of π.
2
A circle has diameter 12 cm. Find its circumference in terms of π.
3
A circle has radius 8 cm. Find its circumference in terms of π.
4
A circle has diameter 22 cm. Find its circumference in terms of π.
5
A circle has radius 1 cm. Find its circumference in terms of π.
6
A circle has diameter 24 cm. Find its circumference in terms of π.
Answer Key
1. 8π cm2. 12π cm3. 16π cm4. 22π cm5. 2π cm6. 24π cm