Law of Sines & Cosines Test (Test MC Section)

Solve for the unknown side length. Round your answer to one decimal place.

• 5.0

• 5.1

• 20.3

• 0.5

Determine the length of c to the nearest tenth of a centimeter.

• 23.0 cm

• 25.0 cm

• 24.0 cm

• 26.1 cm

Determine the measure of  θ   to the nearest degree.

• 30

• 60

• 40

• 50

 $In\ \nabla DEF,\ \angle D=61\degree,\ d=23.9\ cm,\ and\ \angle E=3.$  Determine the length of side e to the nearest tenth of a centimetre. 

• 16.8 cm

• 16.0 cm

• 17.6 cm

• 18.4

Determine the length of EF to the nearest centimetre.

• 84 cm

• 82 cm

• 88 cm

• 86 cm

Determine the measure of $\theta$  to the nearest degree.

•  $30\degree$  

•  $40\degree$  

•  $50\degree$  

•  $60\degree$  

Which law could you use to determine the unknown side length in this triangle?

• neither the sine law nor the cosine law

• the sine law only

• the cosine law only

• the sine law and the cosine law

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

Amanda and Jamie are standing 25 feet apart and spot a bird in the sky between them.  The angle of elevation from Amanda to the bird is 55, and from Jamie to the bird is 63.  How far away is the bird from Amanda?

• 25.23
• 23.19
• 22.15
• 20.85

15. 15.Solve for β

• 45.2

• 26.3

• 36.3

• 56.2