Main content

### Course: 7th grade (Illustrative Mathematics) > Unit 3

Lesson 4: Lesson 5: Circumference and wheels# Circumference and rotations

You might need: Calculator

If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

Main content

You might need: Calculator