Congruent Triangles & Geometric Proof (GCSE Higher)

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About Course

Learn the four conditions for congruent triangles (SSS, SAS, ASA and RHS) and how to write a clear, fully reasoned geometric proof of the kind set in GCSE Higher papers. Includes the angle facts you will need as reasons and the common mistakes that lose marks.

Tutwoo is an independent learning provider. This course supports maths learning and revision and is not produced or endorsed by any exam board. It is not an accredited qualification.

What Will You Learn?

  • State and apply the four congruence conditions: SSS, SAS, ASA (AAS) and RHS
  • Explain why three equal angles (AAA) do not prove congruence
  • Give correct reasons using angle facts and properties of shapes
  • Set out a congruence proof that earns full marks

Course Content

Course Lessons

  • What congruence means
  • Reasons you can use
  • Writing a congruence proof
  • Common mistakes and exam tips

Sources & Further Reading
The official guidance this course is based on.

Final Assessment

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