Angles of Triangles

Unit 7: Proofs about Triangles
Lesson 3 of 11

Objective: SWBAT prove theorems about the measures of angles of a triangles.

Big Idea: Students will use paper triangles to perform informal proofs about the sum of the interior angles and exterior angles of triangles.

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Subject(s):
Math, Geometry, Proofs, triangle, Triangle Proofs
  45 minutes
angles of a triangle image resized
 
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