Recognise the criteria for the congruence of triangles and solve related problems.
This is level 3; Use your knowledge of congruent triangles to find lengths and angles. The diagrams are not drawn to scale.
When naming congruent triangles the letter order should correspond.
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Pairs - The classic pairs game with simple congruent shapes.
Level 1 - Determining whether two triangles are congruent and finding the reason
Level 2 - Further questions on recognising congruency ordered randomly
Level 3 - Use your knowledge of congruent triangles to find lengths and angles
Similar Shapes - Similarity is a related concept.
Exam Style Questions - A collection of problems in the style of GCSE or IB/A-level exam paper questions (worked solutions are available for Transum subscribers).
More Geometry including lesson Starters, visual aids, investigations and self-marking exercises.
See the National Curriculum page for links to related online activities and resources.