Unit 3 Similarity

This unit builds on students' prior knowledge of dilations and rigid transformations to formally prove triangle similarity theorems. Students will use these concepts to demonstrate that triangles are similar if their corresponding angles are congruent and corresponding sides are proportional, culminating in proving the Angle-Angle Triangle Similarity Theorem. The unit also emphasizes applying these theorems to solve for unknown side lengths and angle measurements, particularly in similar right triangles, which serves as an important precursor to trigonometry.