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Introduction to Parallel Lines - Lesson 4.5

We started today by defining the following:

Definition of a Plane


After that we defined a transversal:

Definition of a Transversal


Then, we defined corresponding angles,

Corresponding Angles


alternate interior angles,

Alternate Interior Angles


and alternate exterior angles.

Alternate Exterior Angles


You should also know how to recognize same side interior angles and same side exterior angles.

We finished by defining parallel lines.  Note that parallel lines are different from skew lines, which are to non-coplanar lines that do not intersect.

Definition of Parallel Lines

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Class Notes
Lesson 4-1
Lesson 4-2
Lesson 4-3
Lesson 4-4
Lesson 4-5
Lesson 4-6
Test Topics
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