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Home  /  Trigonometry by Topic  /  Chapter 7 · Applications of Trigonometry and Vectors
Section 7.3

The Law of Cosines

An explanation of the Law of Cosines and Heron's Formula for the area of a triangle

3 lessons. Pick what you need.

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Chapter 7 · Applications of Trigonometry and Vectors
7.1 7.2 7.3 7.4 7.5
Lesson

Lesson on the Law of Cosines

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Examples

Examples on the Law of Cosines with an SSS Triangle

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Lesson

Lesson on Heron's Formula for the Area of a Triangle

Guided Notes Guided Notes (Word Version)