Arcs, sectors, chords, and angles

Turn the central angle into a fraction of the circle

10 min 6 stepsGraded practice at the end

1. 1Meet it
2. 2Spot it
3. 3Run it
4. 4Dodge the traps
5. 5Play with it
6. 6Prove it

The first step is free. A free account opens the rest.