MATH 130 · Unit 2

Geometry: Angles and Polygons

This lecture is organized as two complete class meetings. Choose the session you are teaching or reviewing.

Session 1

Geometry Foundations and Angle Relationships

Lines, angles, parallel-line relationships, and equation solving

55 minutes · 22 slides

  • use geometric notation and distinguish congruence from similarity
  • measure, classify, and relate angles
  • use parallel-line relationships to solve angle equations
Open session 1

Session 2

Polygon Area, Triangles, and Similarity

Angle sums, area strategies, similarity, and navigation angles

55 minutes · 22 slides

  • compute polygon angle sums and areas
  • select and apply triangle area and Pythagorean formulas
  • solve similarity proportions and convert navigation angles
Open session 2

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