Geometry Mod 3B (Parallel/Perpendicular)

parallel lines

coplanar lines that do not intersect

slope-intercept form

y=mx+b

slope

Rise over run

transversal

a line that intersects two or more coplanar lines at different points

alternate interior angles

Interior angles that lie on opposite sides of the transversal

corresponding angles

Angles in the same place on different lines

parallel planes

planes that do not intersect

skew lines

non-coplanar lines that do not intersect

point slope form

y-y₁=m(x-x₁)

alternate exterior angles

exterior angles that lie on opposite sides of the transversal

consecutive interior angles

interior angles that lie on the same side of the transversal

equidistant

same distance

If 2 parallel lines are cut by transversals, then corresponding angles are __.

congruent

If 2 parallel lines are cut by transversals, then alternate interior angles are __.

congruent

If 2 parallel lines are cut by transversals, then alternate exterior angles are __.

congruent

If 2 parallel lines are cut by transversals, then consecutive interior angles are __.

supplementary

If a transversal is perpendicular to one of 2 parallel lines, then it is ___ to the other one.

perpendicular

Parallel lines have the __ slope.

same

Perpendicular lines have the __ slope.

opposite reciprocal

The distance from a line to a point not on the line is the __ segment from that point to the line.

perpendicular

If there is a line and a point not on the line, then there is __ line through the point parallel to the given line.

exactly one

In a plane, if two lines are perpendicular to the same line, then the two lines are __.

parallel

In a plane, if two lines are __ from a third line, then the two lines are parallel.

equidistant