Chapter 3 flashcards
Parallel
Lines that lie in the same plane but never intersect
Parallel lines
Coplanar lines that do not intersect
Skew lines
Noncoplanar; they are not parallel and do not intersect
Parallel Planes
Planes that do not intersect
Alternate interior angles
Non adjacent interior angles that lie on opposite sides of the transversal
Same-side interior angles
Interior angles that lie on the same side of the transversal
Corresponding angles
Lie on the same side of a transversal and in corresponding positions
Alternate exterior angles
Non adjacent exterior angles that lie on opposite sides of the transversal
Transversal line
Intersects two or more lines
Interior
A pair of lines is the region between two lines
If a transversal intersects two parallel lines,
Then corresponding angles are congruent
If a transversal intersects two parallel lines,
Then alternate interior angles are congruent
If a transversal intersects two parallel lines,
Then same-side interior angles are supplementary
If a transversal intersects two parallel lines,
Then alternate exterior angles are congruent
