Greatest Triangles: The Triangle with Three Right Angles
One entry from the 10 Greatest Triangles countdown: The Triangle with Three Right Angles.
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Free for classrooms, worksheets, slides and other non-commercial use under CC BY-NC 4.0, with credit to Ben Orlin.
Cartoon by Ben Orlin, Math with Bad Drawings. https://cartoons.mathwithbaddrawings.com/2025-10-08-the-10-greatest-triangles-of-the-21st-century--greatest-triangles-the-triangle-with-three-right-angles/ (CC BY-NC 4.0)Transcript
#5: The Triangle with Three Right Angles. [on a sphere] "Hello, Mr. Euclid? There's a sphere I'd like you to meet…"