Law of Sines Law of Cosine

What is the length of side x?

(a)  

Tags

CCSS.HSG.SRT.C.8

Which Law would you use?

• Law of Sines

• Law of Cosines

• Law of the Jungle

• Law of Gravity

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

Solve each triangle, round to the nearest tenth.

• angle H= 15°, f= 55.5, g= 64.5

• angle H= 113° f= 55.5, g= 64.5

• angle H= 53°, f= 64.5, g= 55.5

• angle H=15°, g= 65, f= 56

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

To approximate the length of a marsh, a surveyor walks 425 meters from point A to point B. Then the surveyor turns 65º and walks 300 meters to point C. Approximate the length AC of the marsh.

• 250

• 615

• :)

• Not me

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

find X

• 52

• 33

• 41

• 29

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

Find XZ

• 16.004 meters

• 544.165 meters

• 34.7 meters

• 1204.165 meters

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

Find angle Z

• 20.145 degrees

• 71.232 degrees

• 51.055 degrees

• 57.713 degrees

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

Solve each triangle, round to the nearest tenth.

• = 32,a= 11.2 b= 19.8

• = 40 a= 11.2 b= 19.8

• = 32 a= 12.2 b= 19.8

• = 20 a= 11.3 b= 20.0

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

A yacht is anchored 90 feet offshore from the base of a lighthouse.  The angle of elevation from the boat to the top of the lighthouse is 26 degrees.   Which of these is nearest to the height of the lighthouse? 

• 25 feet

• 44 feet 

• 81 feet 

• 185 feet 

Tags

CCSS.HSG.SRT.C.8

Joey must find the distance from Point A to Point B on opposite sides of a lake. He locates Point C that is 860 feet from point A and 175 feet from Point B. He measures the angle at Point C to be 78 degrees. Find the distance from point A to point B.

• 707643.58

• 841.22

• 877.62

• 845.01

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11