This is the tenth in a series of major trigonometry topics, adapted from a series of lessons that I wrote for homeschoolers. It covers the development of the laws, "solving triangles", applications (including those with bearings), and area of a triangle. The content is very organized with a lot of comments and detail in the examples.
Problem solutions are step-by-step. This can be 4 or 5 lessons depending on available time. Download the preview to see suggestions and complete content for this product.