# Square on an Octagon _Posted on Feb 19, 2019_ +-- {.image} [[SquareonanOctagon.png:pic]] > Two of the square's corners lie on the regular octagon. What's the angle? =-- * Thread [on twitter](https://twitter.com/Cshearer41/status/1097852940021321733) * [[square on an octagon techniques]] * [[square on an octagon solution]]