ACARA AC9M7M05, Angle sum of shapes
Year 7 · Measurement
Show that the interior angles of a triangle add to 180 degrees and use this to find the angle sum of other shapes and unknown angles.
Below are free printable maths worksheets that support AC9M7M05. Print them as PDFs, or generate a fresh one. Every maths answer key is computed in code, so it is never wrong.
Teaching guide
Show that the interior angles of a triangle add to 180 degrees and use this to find the angle sum of other shapes and unknown angles.
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).
Generated and checked in code, so it is correct.
Confusing perimeter and area, and judging a shape by its orientation rather than its properties.
Geometry worksheets
All geometry worksheets →Australian Curriculum content descriptions (c) ACARA, used under CC BY 4.0. Descriptions are paraphrased. See australiancurriculum.edu.au.