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Plane geometry

Learn about the different equations of lines in the plane, their relative positions, and how to calculate the angle and the distance between them and other elements.

• Angles between straight lines
• Continuous equation of the straight line
• Coordinates of a point, components of a vector and midpoint of a segment
• Distance between a point and a straight line
• Distance between two points
• Distance between two straight lines
• Equation slope-point of the straight line
• Explicit equation of the straight line
• General equation (or Cartesian or implicit) of the straight line
• Parametrical equations of the straight line
• Perpendicular straight lines
• Relative positions between straight lines
• Vector equation of the straight line