🎯 Pun

What do you call a nine-sided cat?

A cat-a-gon!

Why This Joke Works

A nonagon has nine sides, and "cat-a-gon" swaps the prefix "nona" for "cat" — giving the nine-sided polygon a feline identity. The absurdity of a nine-sided cat is exactly the right level of geometric chaos.

🎤 How to Tell This Joke

Deliver with the pride of someone who has been waiting to introduce the cat-a-gon to the world.

Perfect for:

  • Polygon lessons covering nonagons
  • Cat-lover audiences who also study geometry
  • A polygon naming activity where students invent new shape names

💡 Did You Know?

Math jokes rely on the same logical structure as mathematical proofs — setup (hypothesis), expectation (theorem), punchline (QED of comedy).

More Jokes Like This

See all Math Dad Jokes

Want More Dad Jokes?

We've got 2,000+ dad jokes across 20 categories. Find your next favorite.