Jai Ho

Why is pi here? And why is it squared? A geometric answer to the Basel problem

Jai Ho

Jai Ho

Educational videos and stories

By 3Blue1BrownFrom BoclipsNovember 12, 2025
More about this video

A beautiful solution to the Basel Problem (1+1/4+1/9+1/16+...) using Euclidian geometry. Unlike many more common proofs, this one makes it very clear why pi is involved in the answer.

#Explainer
#Mathematics
#Physical Sciences
#Physics
#Advanced Secondary

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