Circles and circumference
All You Need in One Place
Everything you need for better marks in primary, GCSE, and A-level classes.
Learn with Confidence
We’ve mastered the UK’s national curriculum so you can study with confidence.
Instant and Unlimited Help
24/7 access to the best tips, walkthroughs, and practice questions.
Make math click 🤔 and get better grades! 💯Join for Free
- Find the circumferences of the following circles.
- Find the radius (r).
- and are radii of circle C.
- Find the circumference of the circle.
- The wheels of David's bicycle have a radius of 9 inches. How far has David traveled if the wheels have made 120 revolutions?