Year 9 Geometry: Angles and Triangles Unit

A complete 7-lesson unit covering parallel-line angles, polygon properties, congruent and similar triangles, Pythagoras' theorem, and right-angled trigonometry. The resource includes worked examples, guided practice problems (Parts A–C), mixed problem-solving activities, and a comprehensive answer key. Each lesson is scaffolded with visual diagrams and clear vocabulary, building systematically from angle rules through to trigonometric applications, with real-world contexts including Australian locations.