ACARA AC9M7SP02, Classify polygons

Year 7 · Space

Sort triangles, quadrilaterals and other polygons by their side and angle properties and reason about how they relate.

Below are free printable maths worksheets that support AC9M7SP02. Print them as PDFs, or generate a fresh one. Every maths answer key is computed in code, so it is never wrong.

Teaching guide

What students learn

Sort triangles, quadrilaterals and other polygons by their side and angle properties and reason about how they relate.

How to teach it

Sort and name 2D and 3D shapes by their properties (sides, angles, faces), then build up to perimeter (add the sides) and area (cover with unit squares).

Worked example

Rectangle 2 cm by 15 cm. Area = ___ sq cm

Answer: 30

Generated and checked in code, so it is correct.

Watch out for

Confusing perimeter and area, and judging a shape by its orientation rather than its properties.