Our
Points, Lines, Planes, and Angles Quick Reference Guide explains many of the definitions, postulates, and theorems that are found in a typical high school Geometry textbook and are associated with points, lines, planes, and angles. The topics discussed include:
- The meanings of the terms point, line, and plane
- Naming points, lines, planes, rays, and line segments
- Collinear and coplanar points
- The definitions of the terms midpoint, segment bisector, and congruent segments
- The Segment Addition Postulate and the Midpoint Theorem
- Naming angles
- The definitions of the terms acute angle, right angle, obtuse angle, straight angle, congruent angles, angle bisector, perpendicular lines, vertical angles, and linear pair
- The Linear Pair Postulate
- The Vertical Angles Theorem
