Transcript Geometry Section 3.2 - West End Schools / Nucla, Naturita

Geometry
Section 3.2
Use Parallel Lines and
Transversals
Corresponding Angles Postulate
• If two parallel lines are
cut by a transversal,
then the pairs of
corresponding angles
are congruent
1
2
1   2
Alternate Interior Angles Theorem
• If two parallel lines are
cut by a transversal,
then the pairs of
alternate interior
angles are congruent
1
2
1   2
Alternate Exterior Angles Theorem
• If two parallel lines are
cut by a transversal,
then the pairs of
alternate exterior
angles are congruent
1
2
1   2
Consecutive Interior Angles
Theorem
• If two parallel lines are
cut by a transversal,
then the pairs of
consecutive interior
angles are
supplementary
1
2
m1  m2  180
Examples
• classzone
Assignment
• Section 3.2
• Page 157
• Problems #4-16 even, 17-19, 22, 24, 28,
36, 38