Support · Stage 5 · Properties of geometrical figures C (Path)

Support Prove the properties of isosceles and equilateral triangles and special quadrilaterals from the formal definition of the shapes

Resources for the prerequisite content of this dot point: earlier-stage (or earlier sub-level) dot points in the same strand that students usually need first. Use these to fill gaps before or alongside the core lesson.

Prerequisite links are draft mappings generated from the syllabus structure (earlier stage, same strand, closest content). They are being reviewed by teachers. Spot a poor match? Tell us.

← Back to core resources

Prerequisite dot points

Identify and label the properties of the special quadrilaterals using appropriate conventions

Stage 4 · Properties of geometrical figures Draft mapping

No checked resources on this prerequisite dot point yet.

Classify quadrilaterals based on their properties

Stage 4 · Properties of geometrical figures Draft mapping

  • Interactive toolStarter
    Mathigon: Quadrilaterals
    Mathigon (Amplify) · Interactive (browser) · Free · Link checked 2026-10-15 · Hands-on, No prep
    Use it for: Explore the special quadrilaterals and their hierarchy.
  • Interactive toolStarter
    Mathsisfun: Quadrilaterals
    Maths Is Fun · Interactive (browser) · Free · Link checked 2026-10-15 · No prep
    Use it for: Draggable quadrilateral properties.
  • Corbettmaths practice questions: 2D shapes: quadrilaterals
    Corbettmaths · Web page · Free · Link checked 2026-10-15 · Answers included, No prep, Printable
    Use it for: Free printable graded practice questions (with answers) on 2d shapes: quadrilaterals for drill or a quick check.
  • WorksheetDrill
    Kuta free worksheet: Classifying quadrilaterals
    Kuta Software · PDF · Printable PDF · Free · Link checked 2026-10-15 · Answers included, No prep, Printable
    Use it for: Printable skills-practice sheet with answer key on classifying quadrilaterals; good for drill or homework.
  • WorksheetDrill
    Kuta free worksheet: Classifying triangles and quadrilaterals
    Kuta Software · PDF · Printable PDF · Free · Link checked 2026-10-15 · Answers included, No prep, Printable
    Use it for: Printable skills-practice sheet with answer key on classifying triangles and quadrilaterals; good for drill or homework.
  • VideoStarter
    Corbettmaths video: 2D shapes: quadrilaterals
    Corbettmaths · Video · Free · Link checked 2026-10-15 · No prep
    Use it for: Short worked-example video on 2d shapes: quadrilaterals to model the method before practice or for flipped revision.

Apply the properties of triangles and quadrilaterals to determine unknown sides and angles to solve problems, giving reasons

Stage 4 · Properties of geometrical figures Draft mapping