Learning Goal: Develop understanding of why proving similarity with AA works and continue to build proficiency with application problems.

Classwork

• Estimation – Dilation 4
• Warm Up
• Desmos Activity
  • Inspired by Fawn Nguyen
• Practice

Answers

• Link to Answers

 Standards

• Common Core
  • HSG.SRT.A – Understand similarity in terms of similarity transformations
  • HSG.SRT.B.5 – Use congruence and similarity criteria for triangles to solve problems and to prove relationships in geometric figures.
• TEKS
  • G.7(A) – apply the definition of similarity in terms of a dilation to identify similar figures and their proportional sides and the congruent corresponding angles
  • G.7(B) – apply the Angle-Angle criterion to verify similar triangles and apply the proportionality of the corresponding sides to solve problems