Alternate Interior Angles Theorem
- Author:
- Joseph Marutollo, Tim Brzezinski
- Topic:
- Angles
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 134 degrees, what would the measure of its alternate interior angle be?
3) If we said that when parallel lines exist and you have a transversal that cuts through it, then we would say that the alternate interior angles are__________________________?
4) What is a converse to a statement or theorem?
5) What would the converse of statement 3 be?______________________________________________________________________________________________________________?