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Geometry: Similarity
In this unit, students use dilations and rigid transformations to justify triangle similarity theorems. The unit balances a focus on proof with a focus on using similar triangles to find unknown side lengths and angle measurements.
- Resource details
- Year level
- Year 9
- Purpose
- Teaching resource Student activities
- Strand
- Space
- Topic
- Angles and geometric reasoning
- Audience
- Teachers
- Australian Curriculum code
- AC9M9M03
- Numeracy progression
- Understanding geometric properties (P7) Proportional thinking (P7) Understanding units of measurement (P10)
- Publisher
- GeoGebra
- Copyright
- © 2022 GeoGebra. Free-for-education material.
- Keywords
- ratio angle proof congruent scale factor enlargement transformation
- Other terms
- GeoGebra
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