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Geom · Lesson

Alternate Interior Angles Theorem

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Learning target

“I can state, prove, and apply the Alternate Interior Angles Theorem.”

By the end of this lesson, I will be able to find unknown angle measures.

Prerequisite skills

  • Linear pairs are supplementary
  • Vertical angles are congruent
  • Corresponding Angles Postulate
Stage 1 of 12 · Understand