Law of Sines Law of Cosines

Which Law would you use?

• Law of Sines

• Law of Cosines

What are the possible criteria for Law of Sines?

• SSA, ASA, AAS

• AAS, SSS, ASA

• SAS, SSS, ASA

• SAS, AAS, ASA

What are the possible criteria for the Law of Cosines?

• SSA, SSS

• SSA, ASA

• SSS, SAS

• AAS, ASA

find X

• 52

• 33

• 41

• 29

Find m<A

• A

• B

• C

• D

Find the length of Side BC.

• 33

• 24

• 12

• 29

Find the length of side AB.

• 10

• 8

• 6.1

• 4.9

Which Law would you use to solve for Angle B?

• Law of the Jungle

• Law of Cosines

• Law of the Gravity

• Law of Sines

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

Use the Law of Cosines to find the value of x.  (Level 1)

• 41.7

• 51.7

• 61.7

• 71.7