Unit 3 - Parallel&Perp Lines

Lines, segments, rays, or point that lie in the same plane

Coplanar

Any _ points are coplanar

3

Lines, segments, rays, or point that do not lie in the same plane

Non coplanar

Lines that are coplanar but do not intersect

Parallel lines

Coplanar lines that intersect to form a right angle

Perpendicular lines

Skew Lines

Non coplanar lines that do not intersect

Planes that do not intersect

Parallel planes

Two planes that intersect to form a right angle

Perpendicular planes

Parallel Postulate

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

Perpendicular Postulate

If there is a line and point not on the line, then there id exactly one line through the point perpendicular to the given line.