How to identify parallel lines, a line parallel to a plane, and two parallel planes.
How to write an equation for the coordinate planes or any plane that is parallel to one.
How to find the angle between planes, and how to determine if two planes are parallel or perpendicular.
How to find a vector normal (perpendicular) to a plane given an equation for the plane.
How to form sentences with parallel structure.
How resistors in parallel affect current flow
How capacitors in parallel affect current flow.
How to plot complex numbers on the complex plane.
How to take the converse of the parallel lines theorem.
How to mark parallel lines, how to show lines are parallel, and how to compare skew and parallel lines.
How to describe and label point, line, and plane. How to define coplanar and collinear.
How to determine whether lines are parallel, perpendicular, or neither.
How to prove two triangles are similar using a line parallel to a base.
How to determine whether two lines in space are parallel or perpendicular.
How to prove that opposite angles in a cyclic quadrilateral are congruent; how to prove that parallel lines create congruent arcs in a circle.
How to construct parallel lines using three different methods.