Cosine Law

Solve for x

• 3.85

• 4.25

• 3.35

• 5.65

Find BC

• A
• B
• C
• D

Use the angle formula from the Law of Cosines to find angle Z.

• 20.145 degrees

• 71.232 degrees

• 51.055 degrees

• 57.713 degrees

What is the length of side x?

• 130 cm
• 112 cm
• 150 cm
• 105 cm

Use Law of Cosines to find XZ.

• 16.004 meters

• 544.165 meters

• 34.7 meters

• 1204.165 meters

Use the angle formula from the Law of Cosines to find angle Z.

• 20.145 degrees

• 71.232 degrees

• 51.055 degrees

• 57.713 degrees

Use the angle formula from the Law of Cosines to find m<C.

• A

• B

• C

• D

Use Law of Cosines to find QR.

• 34.7 km

• 2.2 km

• 13.74

• 31.1 km

Use Law of Cosines to find angle T

• 62.2 degrees
• 53.1 degrees
• 59.5 degrees
• 64.7 degrees