Same Side Interior Angles Theorem

Home Same Side Interior Angles Theorem

How it works ?
  1. In the applet below, a TRANSVERSAL intersects 2 PARALLEL LINES.
  2. When this happens, there are 2 pairs of SAME-SIDE INTERIOR ANGLES that are formed.
  3. Interact with the applet below for a few minutes, then answer the questions that immediately follow.
  4. Directions & Questions:
  5. 1) Complete the following statement: If a transversal intersects 2 ________________ ______________, then same-side interior angles are _____________________.
  6. 2) If the gray angle above measures 120 degrees, what would the measure of its same-side interior angle be?
  7. 3) As you moved the slider, what transformation(s) took place?
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