The Other Proofs You've Seen Are Wrong | Complete Circle Theorem Proofs

Опубликовано: 05 Февраль 2025
на канале: Kevin Olding - Mathsaurus

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If you’ve studied maths at school, you’ll have come across the circle theorems, like the angle at the centre is double the angle at the circumference, and angles in a cyclic quadrilateral sum to 180 degrees and the alternate segment theorem.

If you had a good teacher they might even have seen a proof of why these theorems are true. But most of the time the proofs given for these theorems are actually incomplete, and in this video I’ll show you where they usually fall short and how to fix them, giving full proofs of 5 of the most important circle theorems.

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