Law of Sines/Cosines

Find the length of side AB.

• 10

• 8

• 6.1

• 4.9

Find the length of side AC.

• 12

• 10

• 23

• 14

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 Law would you use?

• Law of Sines

• Law of Cosines

• Law of the Jungle

• Law of Gravity

Use law of Sines to find angle C.

Round your answer to the nearest tenth

Mathematical Equivalence

OFF

To solve the triangle shown, you would start with which formula?

• Law of Cosines

• Law of Sines

• Heron's Formula

• Triangle sum theorem

Which Law would you use? (a)  

• Law of Sines

• Law of Cosines

Solve for a.

• 4.28

• 8.56

• 3.22

• 9.45

Which law should I use for the given triangle?

• Law of Sines AFTER testing for #of Triangles

• Law of Sines then switch to Law of Cosines

• Law of Sines only

• None, use Right Triangle Trig

• Law of Cosines only

• Law of Cosines then switch to Law of Sines

Two stakes are holding a small blimp in place. Stake A measures an angle of elevation of 49^o and Stake B measures an angle of elevation of 58^o. If the string attached to Stake A has a length of 148 feet, what is the length of the string attached to Stake B?

• 152.7 feet

• 166.3 feet

• 157.3 feet

• 131.7 feet