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Stage 4 · Right-angled triangles (Pythagoras’ theorem) · Identify and define Pythagoras’ theorem · Topic: Geometry: shapes & angles · Year 7, 8

Establish the relationship between the lengths of the sides of a right-angled triangle

Dot point ID k-10-2022-stage-4-right-angled-triangles-pythagoras-theorem/rig-idd-stg4-02 · NESA code MA_K_10_CP_RIG_IDD_STG4_02 · See it on the NSW Curriculum website ↗

↩SupportBuild the prerequisite skills first · 2 resources ★EnrichExtension & rich tasks · 2 resources

Outcomes for this focus area (MA4-PYT-C-01)

MA4-PYT-C-01 applies Pythagoras’ theorem to solve problems in various contexts

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
Mathigon: Pythagoras' theorem (interactive course)
Mathigon (Amplify) · Interactive (browser) · Free · Link checked 2026-10-15 · Hands-on, No prep
Use it for: Interactive proof-and-practice chapter to discover and apply Pythagoras' theorem.
Also tagged to: Use the relationship to record and define Pythagoras’ theore…; Apply Pythagoras’ theorem to find the unknown length of a si…
Interactive toolEnrichment
Mathigon: Triangles and Trigonometry
Mathigon (Amplify) · Interactive (browser) · Free · Link checked 2026-10-15 · Hands-on, No prep
Use it for: Interactive lessons building to Pythagoras and trig ratios.
Also tagged to: Identify the sine, cosine and tangent ratios in a right-angl…

Focus area resources

Checked resources for Right-angled triangles (Pythagoras’ theorem) as a whole (not mapped to a single dot point).

Unit/Planning
Stage 4 Unit 10 – investigating triangles (sample unit of learning)
NSW Department of Education · Sample unit (DOCX) · Editable document · Free · Link checked 2026-10-15 · Australian context, Editable, Teacher notes
Outcome codes found in document: MA4-EQU-C-01, MA4-PYT-C-01