GCSE · Congruence & similarity

Congruent triangles & proofExam-style questions

The four congruence conditions SSS, SAS, ASA/AAS and RHS, why SSA is not one of them, and how to write a congruence proof that earns every mark.

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15 questions · GCSE (Higher) level · mark scheme and worked solution on each · no sign-up to try

DifficultyAllLevel 1Level 2Level 3Level 4Level 5
  1. 1
    Two triangles each have angles of 40°40°, 60°60° and 80°80°. Must the triangles be congruent? Explain your answer.
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