🎯 Pun

Why is the obtuse triangle always upset?

Because it's never right!

Why This Joke Works

An obtuse triangle literally cannot have a right angle by definition, so "never right" is a geometric fact — but it also means perpetually wrong or incorrect. Pairing this with the right-angle joke creates a nice contrast: one shape is always right, the other never is.

🎤 How to Tell This Joke

Deliver with a sympathetic shake of the head, like you genuinely feel for the obtuse triangle's plight.

Perfect for:

  • Geometry class when covering types of triangles
  • Consoling someone who keeps making mistakes
  • Back-to-back with the right-angle joke for a two-part bit

💡 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.