Heptagon in a sentence as a noun

I feel bad for the poor heptagon, which has neither a flat tiling nor a solid.

"Already 7 inside a heptagon is much, much bigger than Graham’s number.

It would be pretty mean to include a special challenge level for constructing a heptagon... but also funny.

I better go start getting all of these polygon domain names... just in case visa/master starts their pentagon/hexagon/heptagon services too.

Heptagon definitions

noun

a seven-sided polygon