Alternate Interior Angles Theorem
In the applet below, a TRANSVERSAL intersects 2 PARALLEL LINES. When this happens, there are 2 pairs of ALTERNATE INTERIOR ANGLES that are formed. Interact with the applet below for a few minutes, then answer the questions that immediately follow.
Directions & Questions: 1) Complete the following statement: If a transversal intersects 2 ________________ ______________, then alternate interior angles are _____________________. 2) If the pink angle above measures 156 degrees, what would the measure of its alternate interior angle be? What would the measure of the gray angle be?