- Midpoint formula
- Midpoint formula
- The Pythagorean theorem intro
- Pythagorean theorem
- Distance formula
- Distance formula
- Perpendicular line slope
- Equations of parallel and perpendicular lines
- Parallel line equation
- Parallel lines
- Parallel lines 2
- Parallel lines 3
- Perpendicular lines
- Perpendicular lines 2
- Equations of parallel and perpendicular lines
- Distance between a point and a line
- Distance between point and line