Enrich · Stage 5 · Trigonometry D (Path)

Enrich Use the unit circle or graphs of trigonometric functions to establish and apply the relationships sin⁡A = sin⁡(180° - A), cos⁡A = - cos⁡(180° - A), and tan⁡A = - tan⁡(180° - A) for obtuse angles when 0° ≤ A ≤ 90°

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 Trigonometry D (Path)

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

• Rich taskEnrichmentEarly finishersEnrich
  NRICH: Round and Round and Round
  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.