TechMathI - 4.5 - Altitudes, Medians, and Bisectors
1. Bell Ringer 1. List the three things you need to use the HL Theorem. 2. In your own words, describe the isosceles triangle theorem. 3. List the four congruence theorems that will prove two triangles congruent.
13. Altitude 08/31/10 EQ: What are the differences between medians, altitudes, and perpendicular bisectors? The altitude is the “true height” of the triangle.
14. Tell whether each red segment is an altitude of the triangle. NO YES YES The altitude is the “true height” of the triangle.
15. Perpendicular Bisector Perpendicular Bisector midpoint and perpendicular Picture: Both sides are congruent- make sure you see this or it is NOT a perpendicular bisector
16. Tell whether each red segment is an perpendicular bisector of the triangle. NO NO YES