Law of Cosines Word Problems

Which Law would you use?

• Law of Sines

• Law of Cosines

• Law of the Jungle

• Law of Gravity

A triangle with two sides that measure 6 m and 8 m with an included angle of 137°.

• 17.8m²

• 14.6m²

• 16.4m²

• 12.9m²

Use Law of Cosines to find angle T

• 62.2 degrees

• 53.1 degrees

• 59.5 degrees

• 64.7 degrees

Use Law of Cosines to find XZ.

• 16.004 meters

• 544.165 meters

• 34.7 meters

• 1204.165 meters

What is the length of side x?

• 130 cm

• 112 cm

• 150 cm

• 105 cm

Find alpha

• 53.6

• 13.3

• 113.1

• 78.2

Which Law would you use?

• Law of Sines

• Law of Cosines

• Law of the Jungle

• Law of Gravity

Find the length of side AB.

• 10

• 8

• 6.1

• 4.9

Find the length of side AC.

• 12

• 10

• 23

• 14