Each cluster shows where the same content lives in other major curricula, plus open‑licensed resources curated underneath. Sources are official ministry documents — never inferred.
Similarity, Right Triangles, and Trigonometry (G.SRT)
Define similarity through dilations; prove theorems involving similarity; define trigonometric ratios and solve right triangles; apply trigonometry to general triangles (Law of Sines, Cosines).
UK National Curriculum≡ EQUIVALENT
Trigonometry (Y11)
Australia ACARA≈ OVERLAPS
Measurement — Year 10
Sine and cosine rules are 10A (optional advanced) in AU Y10; standard in UK Y11 and US HS Geometry.
Cambridge IGCSE≡ EQUIVALENT
IGCSE 0580.6 Trigonometry
US G.SRT: trig ratios in right triangles + Law of Sines/Cosines.