Trigonometry
To have a good grasp of electrical theory it is important to have a grasp of trigonometry. Whether we are talking about single phase or polyphase power, trigonometry is a key concept. The first part of this textbook will look at one of the most basic parts of trigonometry: the triangle.
Learning Objectives
- Define different types of angles
 - Identify the attributes of right triangles
 - Apply Pythagoras’ theorem
 - Demonstrate trigonometry using right triangles
 - Explain impedance triangles
 - Explain power triangles
 
See the Trigonometry section of the Appendix for worksheets that can be used in this section.