Enrich · Stage 5 · Properties of geometrical figures B (Path)

Enrich Apply the result for the sum of the interior angles of a triangle to find, by dissection, the sum of the interior angles of a polygon with more than 3 sides

Extension and enrichment for students who are ready to go deeper: rich tasks, problem solving and open-ended challenges.

← Back to core resources

Enrichment for this dot point

No enrichment tasks tagged to this exact dot point yet.

More enrichment in Properties of geometrical figures B (Path)

Rich tasks tagged to other dot points in this focus area.

• Interactive toolEnrichmentEnrich
  Mathigon: Tessellations
  Mathigon (Amplify) · Interactive (browser) · Free · Link checked 2026-10-15 · Hands-on, No prep
  Use it for: Enrichment: which regular polygons tessellate, and why.
• Rich taskEnrichmentEarly finishersEnrich
  NRICH: Polygon Pictures
  NRICH (University of Cambridge) · Web page · Free · Link checked 2026-10-15 · Low floor high ceiling, Teacher notes
  Use it for: Low-floor, high-ceiling NRICH task extending this dot point; use for extension or a problem-solving lesson.
• Rich taskEnrichmentEarly finishersEnrich
  NRICH: Same Length
  NRICH (University of Cambridge) · Web page · Free · Link checked 2026-10-15 · Low floor high ceiling, Teacher notes
  Use it for: Low-floor, high-ceiling NRICH task extending this dot point; use for extension or a problem-solving lesson.