How to define and use the law of cosines.
How we define sine and cosine for all angle measures using the unit circle.
How to define an angle of elevation or an angle of depression.
How to identify supplementary and complementary angles.
How to use the quadratic formula to solve quadratic equations.
How to calculate the measure of an inscribed angle.
How to derive the formula to find the sum of angles in any polygon.
How to define exterior angles and their remote interior angles and how to prove their properties.
Vocabulary of angles and how to measure an angle with a protractor
How to define corresponding angles and their special properties.
How to label an angle bisector; how to use an angle bisector to find a missing variable.
How to duplicate an angle using a compass and straightedge.
How to use the Euler Formula to convert a complex number from the exponential form to rectangular form.
How to define the cosine ratio and identify the cosine of an angle in a right triangle.