Law of Cosines Answers

In triangle MNP, m = 5 cm, n = 4 cm, and p = 8 cm. Which formula can you use to find P?

Use the information to answer the questions.In triangle ABC, a = 11 in., m angle B equal to 70 degree. , andc = 9 in. Which information about the triangle is given? ASA✔ SASSSASSS

Which formula can you use to find b?

What is b, rounded to the nearest tenth?3.8 in10.4 in✔ 11.6 in16.4 in

Using the law of cosines, what is m angle X to the nearest degree?

Gabe tried to use the law of cosines to find an unknown angle measure in a triangle. His work is shown. What is Gabe’s error?

Cheyenne and Jacob are geocaching. They are currently hiking on a main trail at a bearing of N 45° E. They determine that the cache should be about 1.5 miles off the trail at a bearing of N 17° E. If they want to hike to a point 3 miles further along the main trail once they have located the cache, they will hike an additional 1.0 miles✔ 1.8 miles2.7 miles3.3 miles.