5:17 How many ways are there to prove the Pythagorean theorem? - Betty Fei
Three famous proofs — Euclid, Einstein and Garfield — clearly animated.
Proofs of Pythagoras' theorem
Explore proofs of Pythagoras' theorem
7 hand-picked video lessons for this topic, each checked for relevance and clarity, graded by difficulty and labelled by depth. Press play to watch — nothing loads from YouTube until you do.
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11:14 Visual Proof of Pythagoras' Theorem
Eddie Woo builds a memorable visual proof of Pythagoras' theorem.
7:07 Geometry - Proving the Pythagorean Theorem with Similar Triangles
A clear proof of Pythagoras using similar right-angled triangles.
4:10 Pythagorean Theorem Proof (Geometry)
A delightful visual explanation of why Pythagoras' theorem is true.
9:53 Pythagorean theorem proof using similarity | Geometry | Khan Academy
Khan Academy proves Pythagoras using similar triangles, step by step.
1:00 Easiest Proof of Pythagoras' Theorem
A quick, elegant area-and-algebra proof of Pythagoras in under a minute.
3:34 Proving the Pythagorean Theorem
A simple, memorable proof of Pythagoras explained step by step.