Triangle Area & Law of Sines & Cosines Review

What are the possible criteria for the Law of Cosines?

• SSA, SSS

• SSA, ASA

• SSS, SAS

• AAS, ASA

Which law would you use?

• Law of Sines

• Law of Cosines

Which law would you use?

• Law of Sines

• Law of Cosines

Identify the Law of Sines

• Soh Cah Toa

For which triangle would you use Law of Sines?

• 
• 
• 
• 

Use Law of Sines to find X . (Hint: sin^-1 )

• 52

• 33

• 41

• 29

Which of the following formulas shows the Law of Cosines?

• c² = a² + b² - 4ac + cosA
• c² = a² - b² - 2abcosC
• c² = a² + b² - 2abcosC
• (cos A)/a = (cos B)/b

 What is the correct set up to find side p?

Would you use the Law of Sines

or the Law of Cosines?

• Law of Sines

• Law of Cosines