2.3 - Distance from the Origin (Part 1)

2.4 - Equation of a Circle

2.5 - Distance Between Two Points

2.7 (Part 1) - Finding the Mid-Point of a Line Segment

2.7 (Part 2) - Finding the Mid-Point of a Line Segment

2.8 (Part 1) - Classifying Shapes on the Coordinate Plane - Triangles

2.8 (Part 2) - Classifying Shapes on the Coordinate Plane - Quadrilaterals

2.11 - Properties of the Diagonals of a Quadrilateral