Unit 3: Triangle Congruency

The triangle congruency unit aims to teach you how to prove that two triangles are congruent. You'll learn that congruence means one shape can be mapped onto another using rigid motions like rotation and reflection. The key is to apply congruence theorems such as SSS, SAS, ASA, AAS, and HL to identify corresponding parts and solve problems, including those with overlapping triangles. You'll also learn to write formal proofs, justify statements with theorems, and use the properties of isosceles and equilateral triangles. The final goal is to understand and apply the principle that corresponding parts of congruent triangles are congruent (CPCTC).