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NSW Curriculum
NSW Education Standards Authority

K–10Mathematics K–10 Syllabus

Record of changes
Implementation for K–2 from 2023 and 3–10 from 2024
Expand for detailed implementation advice

Content

Stage 5

Properties of geometrical figures A
Identify and describe the properties of similar figures
  • Describe similar figures as having the same shape but not necessarily the same size

  • Verify and explain that in similar polygons, the corresponding angles are equal and the corresponding side lengths are in the same proportion

  • Match the corresponding sides and angles of similar polygons

Solve problems using ratio and scale factors in similar figures
  • Apply an appropriate scale to enlarge or reduce a diagram

  • Determine the scale factor for pairs of similar polygons and circles

  • Apply knowledge of scale factor to find unknown sides in similar polygons

  • Solve problems involving unknown lengths and scale factors of similar figures and related practical problems

  • Solve problems involving scale drawings, with or without digital tools

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