Triangle Inequality for Communication
A friend refuses to relay a message, citing the triangle inequality: going through B is always slower than going straight to C.
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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/2022-01-01-triangle-inequality-for-communication/ (CC BY-NC 4.0)Transcript
A: "Oh, when you see her, can you tell her that I…" B: "No. Tell her yourself." [Board: triangle A, B, C]
[Caption] "Triangle Inequality for Communication: It is strictly slower to send a message from A to B to C than from A straight to C."