FG Ch3 3.2Notes
- Author:
- Mr. Gluth
One big question: How are the pairs of angles formed by a transversal related to one another when the lines are parallel? We will break this question into 4 smaller parts.
Corresponding Angles Postulate:
If parallel lines are cut by a transversal,
then the corresponding angles ________________ .
- Find a pair of corresponding angles in the sketch below. What do you notice about them?
- Move point A or B. Is your conjecture still true?
Alternate Interior Angles Theorem
If parallel lines are cut by a transversal,
then the alternate interior angles ________________ .
- Find a pair of alternate interior angles in the sketch below. What do you notice about them?
- Move point A or B. Is your conjecture still true?
Alternate Exterior Angles Theorem
If parallel lines are cut by a transversal,
then the alternate exterior angles ________________ .
- Find a pair of alternate exterior angles in the sketch below. What do you notice about them?
- Move point A or B. Is your conjecture still true?
Same-Side Interior Angles Theorem
If parallel lines are cut by a transversal,
then the same-side interior angles ________________ .
- Find a pair of same-side interior angles in the sketch below. What do you notice about them?
- Move point A or B. Is your conjecture still true?