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Learning Goal
Part of: Understand similarity in terms of similarity transformations — 3 of 3 cluster items
Establish AA similarity criterion
HSG.SRT.A.3
**HSG.SRT.A.3**: Use the properties of similarity transformations to establish the AA criterion for two triangles to be similar.
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HSG.SRT.A.3: Use the properties of similarity transformations to establish the AA criterion for two triangles to be similar.
What you'll learn
- State the AA (Angle-Angle) criterion for triangle similarity
- Prove the AA criterion using properties of similarity transformations
- Apply the AA criterion to determine if two triangles are similar
- Explain why two pairs of equal angles are sufficient (don't need to check the third angle or sides)
- Distinguish between AA for similarity and ASA/AAS for congruence
- Use AA to solve problems involving similar triangles
Prerequisites
Slides
Interactive presentations perfect for visual learners • 2 slide decks
Slide Video
Watch narrated slides play like a video lesson • Narrated slide playback
Exercises
Practice problems to build fluency and understanding • 1 exercises