# A Hexagon and a Nonagon _Posted on Feb 28, 2021_ +-- {.image} [[AHexagonandaNonagon.png:pic]] > Two regular polygons. What’s the perimeter of the shaded region? =-- * Thread [on twitter](https://twitter.com/Cshearer41/status/1365979763752468489) * [[a hexagon and a nonagon techniques]] * [[a hexagon and a nonagon solution]]