If you enjoyed reading about how you can form most other fundamental shapes (a triangle, a square etc) from circles, check out the game Euclidea. It's kind of

If you enjoyed reading about how you can form most other fundamental shapes (a triangle, a square etc) from circles, check out the game Euclidea. It's kind of brilliant at letting you rediscover many of these concepts, and also just a great sandbox for demonstrating these ideas. Nice tool to have on your phone. Android: https://play.google.com/store/apps/details?id=com.hil_hk.euclidea https://play.google.com/store/apps/details?id=com.hil_hk.euc... iOS: https://apps.apple.com/us/app/euclidea/id927914361 https://apps.apple.com/us/app/euclidea/id927914361