三割七角形

https://gyazo.com/7006d3e7fc95585ee31cf9d11317ea9f

https://gyazo.com/70c7204911047e2a5f175b7f3a866328

https://gyazo.com/0c180102e07e2aaa668b00a66d7c6d1e

https://gyazo.com/26efb7f8c2f438d46c722c108a03fe47

https://gyazo.com/7923d2b892a462484b31db52c1ff1092

https://gyazo.com/65a8d1f557482ef0317b5c9d42e915b0