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Mathematics Advanced 11–12 – Year 11 · Trigonometry and measure of angles · Trigonometry with angles of any magnitude · Topic: Geometry: shapes & angles · Year 11

Use graphing applications or geometric construction to examine the ambiguous case of the sine rule, in which there are two possible solutions for an angle, and the condition for it to arise

Dot point ID advanced-year-11-trigonometry-and-measure-of-angles/dp-1e7e3d39 · See it on the NSW Curriculum website ↗

↩SupportBuild the prerequisite skills first · 11 resources ★EnrichExtension & rich tasks · 0 resources

Outcomes for this focus area (MAV-11-04)

MAV-11-04 applies trigonometry to solve problems involving geometric shapes

Core resources for this dot point

On-level resources, grouped by type. Need the building blocks? Use Support. Ready for more? Use Enrich.

Interactive tool

Interactive toolStarter Enrichment
Desmos Graphing Calculator
Desmos · Interactive (browser) · Free · Link checked 2026-10-15 · No prep
Use it for: Graph lines, parabolas and exponentials live; find intersections to solve simultaneous equations.
Also tagged to: Examine the gradient of the tangent to the curve y = a^x at …; Use graphing applications to identify the graphs of y = a^x …; Examine the gradient function of y = a^x with graphing appli…; Establish using graphing applications that replacing x by - … and 82 more
Interactive toolEnrichment
GeoGebra Classic
GeoGebra · Interactive (browser) · Free · Link checked 2026-10-15 · No prep
Use it for: Dynamic geometry and graphing for constructions and proofs.
Also tagged to: Examine the gradient of the tangent to the curve y = a^x at …; Use graphing applications to identify the graphs of y = a^x …; Examine the gradient function of y = a^x with graphing appli…; Establish using graphing applications that replacing x by - … and 84 more