Trigonometry Series - Concepts and Formulas™
Solutions of Triangles, Areas of Triangles (TRG-CF7)

This sheet provides a comprehensive review of all of the most important topics, concepts and formulas covering solutions of triangles and areas of triangles. Each concept is explained in detail, with detailed illustrations. Unlike charts and notes, this Concepts and Formulas™ sheet answers questions about how to use the concepts - how to actually solve problems with them, it doesn't just list facts and formulas. There is even an example, or two, for each concept, to help you to nail down the central ideas.

Topics Covered:

• Types of triangles
• The Law of Sines and alternate forms
• The Law of Cosines and alternate forms
• The Law of Tangents and alternate forms
• Newton's formulas and alternate forms
• Mollweide's formulas and alternate forms
• Heron's formula