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Broad topic: Angles, Polygons, and Geometrical Proof

Broad Topics > Angles, Polygons, and Geometrical Proof

TopicResources available
  • 2D shapes and their properties120
  • Angle properties of polygons46
  • Angles - points, lines and parallel lines67
  • Circle properties and circle theorems49
  • Quadrilaterals51
  • Regular polygons and circles106
  • Similarity and congruence59
  • Squares74
  • Triangles104
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The NRICH Project aims to enrich the mathematical experiences of all learners. To support this aim, members of the NRICH team work in a wide range of capacities, including providing professional development for teachers wishing to embed rich mathematical tasks into everyday classroom practice.
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