Proving Geometric Theorems
Geometry · 9th Grade · Foundations of Geometry and Congruence · 1.º Período

Proving Geometric Theorems

Constructing formal proofs for theorems about lines, angles, triangles, and parallelograms.

Common Core State StandardsCCSS.MATH.CONTENT.HSG.CO.C.9CCSS.MATH.CONTENT.HSG.CO.C.10CCSS.MATH.CONTENT.HSG.CO.C.11

About This Topic

Constructing formal proofs for theorems about lines, angles, triangles, and parallelograms.

Key Questions

  1. How do we construct a logical argument in geometry?
  2. What are the properties of parallel lines cut by a transversal?
  3. How do we prove the interior angle sum of a triangle?

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Edited by Adriana Perusin, Editor-in-Chief, Flip Education