Law of Cosines

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

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

What are the possible criteria for the Law of Cosines?

• SSA, SSS

• SSA, ASA

• SSS, SAS

• AAS, ASA

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

Which law would you use?

• Law of Sines

• Law of Cosines

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

Which law would you use?

• Law of Sines

• Law of Cosines

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

What is the correct set up to find angle H?

 

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

• 12.7

• 13.1

• 13.6

• 14.2

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

 What is the correct set up to find side p?

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

Which would you use to find a missing angle?

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

Tags

CCSS.HSG.SRT.C.8