APPLICATIONS OF TRIGONOMETRY

Sine Law:

Where: the uppercase letters = the angle sizes and the lowercase letters = length of side opposite to corresponding angle. 

Area of A Triangle

There are five ways to calculate the area of a triangle

1. 
2. 
3. Counting squares: A= (total # of whole squares) + ( total # of partial squares divided by two)
4. Heron’s Formula  
5. Cartesian Coordinates:

Cosine Law: 

The Ambiguous Case: 

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