Download 3-1 Notes Transversal Corresponding Angles Alternate Interior

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Geometry 3.1 Notes Introduction
3-1 Notes
Transversal
a line that intersects two or more
lines at different points.
Corresponding Angles
Alternate Interior Angles
Interior Angles:
Alternate Exterior Angles
Exterior Angles:
Consecutive Interior Angles
1
4
5 6
8 7
2
3
Geometry 3.1 Notes Introduction
If two parallel lines are cut by a
transversal, then corresponding angles are
congruent, alternate interior angles are
congruent, alternate exterior angles are
congruent, and consecutive interior angles
are supplementary.
Works in the other direction too:
If two lines are cut by a transversal so
that:
a. Corresponding Angles are congruent
b. Alternate Interior Angles are congruent
c. Alternate Exterior Angles are congruent
or
d. Consecutive Interior Angles are Supp.
THEN THE LINES ARE PARALLEL.
Geometry 3.1 Notes Introduction
3-1: 1-30, 38-43, 55-57,
59-63
3-2: 11-19, 24-29,
31-34, 38, 39
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