5:59 GCSE Maths - Congruent Triangle Rules (2026/27 exams)
Clear UK walkthrough of the four congruence rules SSS, SAS, AAS and RHS with examples.
Show if triangles are congruent or similar
Show that two triangles are congruent
6 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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9:10 Congruent Triangles - Corbettmaths
Corbettmaths explains the conditions SSS, ASA, AAS, RHS and SAS needed for two triangles to be congruent.
11:40 Congruent Triangles
Maths Genie works through proving triangles congruent using the standard GCSE congruence conditions.
18:02 Congruent Triangle Proof | Grade 5+ Crossover | GCSE Maths Tutor
Chaptered UK lesson on writing full congruent-triangle proofs, covering each rule then worked examples.
15:43 Similar Triangles - GCSE Maths
Thorough UK guide to finding missing lengths in similar triangles, including tricky overlapping cases.
10:24 Congruent Triangles Proof - GCSE Questions
UK exam-style practice proving triangles congruent using angle and parallel-line facts.