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Iowa Core Math Geometry: G-CO.C.9

  1. Frameworks
  2. Iowa Core Math Geometry

CodeHS Lessons

Prove theorems about lines and angles. Theorems include: vertical angles are congruent; when a transversal crosses parallel lines, alternate interior angles are congruent and corresponding angles are congruent; points on a perpendicular bisector of a line segment are exactly those equidistant from the segment’s endpoints.

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