![My dad, 72, had me create this penny puzzle. I used solidworks to figure out the exact size the square needed to be to fit all 10 in a certain configuration. It My dad, 72, had me create this penny puzzle. I used solidworks to figure out the exact size the square needed to be to fit all 10 in a certain configuration. It](https://preview.redd.it/fyn61v0ftsx41.jpg?auto=webp&s=f698d7182faed1fc645e0b098c2701e6e276790b)
My dad, 72, had me create this penny puzzle. I used solidworks to figure out the exact size the square needed to be to fit all 10 in a certain configuration. It
![Amazon.com: 10 Penny Puzzle - A Circle Packing Problem - Ten Mint Pennies are Included : Toys & Games Amazon.com: 10 Penny Puzzle - A Circle Packing Problem - Ten Mint Pennies are Included : Toys & Games](https://m.media-amazon.com/images/S/aplus-media/sc/6ea58f39-a58f-4739-a1e4-83d4b26e23df.__CR0,155,970,291_PT0_SX600_V1___.jpeg)
Amazon.com: 10 Penny Puzzle - A Circle Packing Problem - Ten Mint Pennies are Included : Toys & Games
![Amazon.com: 10 Penny Puzzle - A Circle Packing Problem - Ten Mint Pennies are Included : Toys & Games Amazon.com: 10 Penny Puzzle - A Circle Packing Problem - Ten Mint Pennies are Included : Toys & Games](https://images-na.ssl-images-amazon.com/images/I/514%2Bts6m5KL._SR600%2C315_PIWhiteStrip%2CBottomLeft%2C0%2C35_PIStarRatingFOURANDHALF%2CBottomLeft%2C360%2C-6_SR600%2C315_ZA939%2C445%2C290%2C400%2C400%2CAmazonEmberBold%2C12%2C4%2C0%2C0%2C5_SCLZZZZZZZ_FMpng_BG255%2C255%2C255.jpg)
Amazon.com: 10 Penny Puzzle - A Circle Packing Problem - Ten Mint Pennies are Included : Toys & Games
![Amazon.com: 10 Penny Puzzle - A Circle Packing Problem - Ten Mint Pennies are Included : Toys & Games Amazon.com: 10 Penny Puzzle - A Circle Packing Problem - Ten Mint Pennies are Included : Toys & Games](https://m.media-amazon.com/images/S/aplus-media/sc/85cf1ede-879e-4388-bdec-b3b5dd776201.__CR0,0,220,220_PT0_SX220_V1___.png)