Mongol Potential
Geometry · Unit 3

Parallel & Perpendicular Lines

Transversals and the eight angles they form; which pairs are congruent and which are supplementary; proving lines parallel; and perpendicular lines.

Builds on

Unit 1's angle pairs (vertical, linear, complementary, supplementary) and Unit 2's proof machinery (converses, properties of equality, the Vertical Angles Theorem).

Lessons
  1. 01Transversals & the Eight Angles
  2. 02Angles & Parallel Lines
  3. 03Finding Angle Measures
  4. 04Proving Lines Parallel
  5. 05Perpendicular Lines
  6. 06Proofs with Parallel Lines