How to identify parallel lines, a line parallel to a plane, and two parallel planes.
How to determine the triangle side inequalities.
How to describe same side interior and same side exterior angles and their special properties.
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 relate the sides of an angle bisected and the lengths of the opposite side.
How to determine the relationship between the side inequalities and angle inequalities in a triangle.
How to prove two triangles are similar using a line parallel to a base.
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.
How to identify a trapezoid and its special properties.
How to define a triangle midsegment and describe its special properties.
How to use the SAS and SSS shortcuts to determine the congruence of two triangles.
How to identify all of the special properties of parallelograms and use them to solve problems.
How to define adjacent angles.
How to define corresponding angles and their special properties.
How to use the ASA and AAS shortcuts to determine the congruence of two triangles.
How to define a central angle and find the measure of its intercepted arc; how to describe the intercepted arcs of congruent chords.
How to label an angle and how to differentiate between acute, right, obtuse, and straight angles.
How to define alternate interior angles and their special properties.