Relationships Within Triangles

5 online lessons · 1 in-person Review & Practice Day

The hidden lines inside a triangle — midsegments, bisectors, and medians — and what they always guarantee.

Lessons

• 5.1 Midsegments of Triangles ~15–30 min
• 5.2 Perpendicular and Angle Bisectors ~15–30 min
• 5.3 Medians, Altitudes, and Points of Concurrency (centroid, orthocenter, etc.) ~15–30 min
• 5.4 Triangle Inequality Theorem ~15–30 min
• 5.5 Indirect Proof ~15–30 min