Proofs Lessons

Introduction to Proofs preview image
00:03:58
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Introduction to Proofs

  • Winner of the 2-minute video contest and a TI-84+ graphing calculator! Video introduces two ...
Proving Lines are Parallel preview image
00:01:13

Proving Lines are Parallel

  • Proving two lines are parallel by corresponding angles
Proving Lines are Parallel preview image

Proving Lines are Parallel

  • Using Alternate exterior angles to prove two lines are parallel