Module 7: Applications of Trigonometry
Apply the Law of Sines, Law of Cosines, triangle area formulas, and get introduced to vectors.
Learning Objectives
- Apply the Law of Sines including the ambiguous case (SSA)
- Apply the Law of Cosines to solve oblique triangles
- Calculate triangle area using trig and Heron's formula
- Define vectors, find magnitude and direction, and perform basic operations
Module Lessons
1
The Law of Sines and the Ambiguous Case
Solve oblique triangles using the Law of Sines; handle the SSA ambiguous case.
2
3
Area of Triangles and Heron's Formula
Find triangle area using A=(1/2)ab sin C and Heron's formula.
4
Introduction to Vectors
Define vectors, find magnitude and direction angle, add and scalar-multiply vectors.