Objectives
 Identify and explore the angle bisectors, perpendicular bisectors, and midsegments of triangles.
 Discover the circumcenters, incenters, and side lengths of triangles and their relationships with angle bisectors, perpendicular bisectors, and midsegments.
 Prove theorems related to the bisectors and segments of triangles.
Key Terms

Notes
Review 

Bisectors and Midsegments 
Angle Bisectors 

Perpendicular Bisectors 

Midsegments 
Answer: 30 inches 
Incenters and Circumcenters 


Triangle Proportionality & Midsegment Theorems 
Answer: 5 cm 
Sierpinski Triangle 
