10:43 Geometric Proof - Corbettmaths
Corbettmaths shows exactly how to set out GCSE geometric proofs using known angle facts.
Simple geometric proofs
Use known facts to obtain simple geometric proofs
2 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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31:47 Geometric Proof | Grade 9 Playlist | GCSE Maths Tutor
Longer higher-tier walkthrough of several geometric proofs with practice questions to try yourself.