Law of Cosine

Law of Cosines

Multiple Choice

Find QR

• 34.7 km

• 2.2 km

• 13.74

• 31.1 km

Multiple Choice

Find m<C

• A

• B

• C

• D

Multiple Choice

Find the missing side.

• 15.9 in.

• 22.8 in.

• 19.2 in.

• 521.1 in.

Multiple Choice

If three sides of a triangle are given, the Law of ____ is used to solve the triangle.

• Cosines

• Sines

• Tangent

• Cosecents

Multiple Choice

Find XZ

• 16.004 meters

• 544.165 meters

• 34.7 meters

• 1204.165 meters

Multiple Choice

8.Solve for x

• 3.85

• 4.25

• 3.35

• 5.65

Multiple Choice

Use Law of Cosines to find angle T

• 62.2°

• 53.1°

• 59.5°

• 64.7°

Multiple Choice

Find angle Z

• 20.15°

• 71.23°

• 51.06°

• 57.71°