# Round & Round, It Goes

Geometry Level 3

A coin of diameter 1 cm rolls from point $$B$$ along the (solid) arc of a big circle and reaches point $$A$$ after revolving 8 full rounds.

If the (red) line segment $$AB$$ is 24 cm long, how many rounds in total will this coin need to revolve to complete one full circle (from B back to B)?

×