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Geometry 3-1, 3-2, 3-5 Notes
October 04, 2016
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
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.
Geometry 3-1, 3-2, 3-5 Notes
October 04, 2016
Works in the other direction too:
If two lines are cut by a transversal so
that:
a. Corresponding Angles are congruent
or
b. Alternate Interior Angles are congruent
or
c. Alternate Exterior Angles are congruent
or
d. Consecutive Interior Angles are Supp.
THEN THE LINES ARE PARALLEL.
Parallel Lines
Coplanar lines that
do not intersect
Skew Lines
Lines in different planes
that do not intersect
Parallel Planes
Planes that do not
intersect
Geometry 3-1, 3-2, 3-5 Notes
October 04, 2016
Geometry 3-1, 3-2, 3-5 Notes
October 04, 2016
o
Geometry 3-1, 3-2, 3-5 Notes
October 04, 2016
Geometry 3-1, 3-2, 3-5 Notes
3-1: 1-30, 38-43, 55-57, 59-63
3-2: 11-19, 24-29, 31-34, 38, 39
3-5: 8-21, 33-35, 48-51, 54-57
October 04, 2016
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