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Classifying triangles
An explanation of how to classify triangles by looking at their angles and lengths of sides. The resource includes explanations, videos, worked examples and questions.
Additional details |
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| Year level(s) | Year 7 |
|---|---|
| Audience | Teacher |
| Purpose | Teaching resource, Student task |
| Format | Web page |
| Teaching strategies and pedagogical approaches | Explicit teaching |
| Keywords | triangles, length of sides, angles |
Curriculum alignment |
|
| Curriculum connections | Critical and creative thinking |
| Strand and focus | Space |
| Topics | Angles and geometric reasoning |
| AC: Mathematics (V9.0) content descriptions |
AC9M7M05
Demonstrate that the interior angle sum of a triangle in the plane is 180° and apply this to determine the interior angle sum of other shapes and the size of unknown angles
AC9M7SP02
Classify triangles, quadrilaterals and other polygons according to their side and angle properties; identify and reason about relationships |
| Numeracy progression |
Understanding geometric properties (P4, P6)
|
Copyright details |
|
| Organisation | CK-12 |
| Copyright | © CK-12 Foundation 2022. Free-for-education material. |
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