Sine Law or Cosine Law

Find the area to the nearest tenth.

• A

• B

• C

• D

Find QR

• 34.7 km

• 2.2 km

• 13.74

• 31.1 km

Find AB

• 10

• 8

• 6.1

• 4.9

Find BC

• A

• B

• C

• D

Two radar stations 2.5 miles apart are tracking an airplane. the straight-line distance between Station A and the plane is 7 miles. the straight-line distance between station B and the plan is 9 miles. What is the angle of elevation from Station B to the plane?

• 28 degrees

• 32 degrees

• 36 degrees

• 40 degrees

Find the area

• 58.2 cm²

• 65.3 cm²

• 49.7 cm²

• 72.3 cm²

Given ∠C = 63°, AB = 28°, and AC = 29°, how many triangles can be made?

• 0

• 1

• 2

• 3

Given ∠C = 36°, AB = 31°, and BC = 24°, how many triangles can be made?

• 0

• 1

• 2

• 3

Three boats are out at sea: Boat A, Boat B, and Boat C. The crew of Boat A can see both Boat B and Boat C. The angle between the line of sight to Boat B and the line of sight to Boat C is 49°. If the distance between Boat A and Boat B is 1.8 miles and the distance between boat A and Boat C is 3.2 miles, what is the distance between Boat B and Boat C?

• 2.4 miles

• 5.3 miles

• 1.3 miles

• 3.7 miles

What is the measure of angle A?

• 58 degrees

• 61 degrees

• 78 degrees

• 74 degrees