Solving Triangles Chapter 8

http://tinyurl.com/chapter8triangles 

Purpose of the Chapter

To solve triangles

To find the area of triangles

Formulas in this chapter

Area of a Triangle Given SAS

Area of a Triangle Given SSS

Area of a Triangle Given Base and Height

Law of Cosines

Law of Sines  

Video Resources

Ambiguous Case Using Law of Cosines

https://www.youtube.com/watch?v=xTDmOzUIIaw 

Ambiguous Case Using Law of Sines

https://www.youtube.com/watch?v=mpEt5p_D5AA  (turn up the volume)

Law of Sines

https://drive.google.com/file/d/0B51bYqgStR6HcUJvemF2dTBzbk0/view?usp=sharing 

Law of Cosines

https://drive.google.com/file/d/0B51bYqgStR6HaHBRc1Rta0R3aFE/view?usp=sharing 

SAS Area Formula

https://drive.google.com/file/d/0B51bYqgStR6HWjF1Uzl0NWV2cnM/view?usp=sharing 

https://www.youtube.com/watch?v=QjPg2mHrrh8 

Heron’s Formula

https://drive.google.com/file/d/0B51bYqgStR6HODNpaVh2QmY1OEk/view?usp=sharing 

https://www.youtube.com/watch?v=QjPg2mHrrh8 

Putting it all together.  Using both Area of a Triangle Formulas and Law of Cosines

https://drive.google.com/file/d/0B51bYqgStR6HbWR2dUVidXBZSGs/view?usp=sharing 

Be ready to solve a triangle or find the area given any of these scenarios:  SAS, SSS, SSA, ASA, SAA

Khan Academy Practice

Solving Triangles Using the Law of Cosines

https://www.khanacademy.org/math/geometry/hs-geo-trig/hs-geo-law-of-cosines/e/law_of_cosines 

Solving Triangles Using the Law of Sines

https://www.khanacademy.org/math/geometry/hs-geo-trig/hs-geo-law-of-sines/e/law_of_sines