The Coin Hexagon

Additional information

Pentominoes video: https://youtu.be/wZ1E_CM7MqA

More Alex Bellos videos: http://bit.ly/Bellos_Playlist

Coin playlist: http://bit.ly/coins_videos

Box of Puzzles: https://youtu.be/Co7Ph4zo1P8

Math Jokes: https://youtu.be/JJQWtGm3eIs

Related Bellos books on Amazon...
US links
Can You Solve My Problems: https://amzn.to/2Fzo59K
Puzzle Ninja: https://amzn.to/2rhd4ob
UK links
Can You Solve My Problems: https://amzn.to/2w6isjO
Puzzle Ninja: https://amzn.to/2HL31mE