Law of Cosines Worksheet. Free pdf with answer key, visual aides and model problems

Students will practice applying the law of cosines to calculate the side length of a triangle and to calculate the measure of an angle. Students will also extend their thinking by applying the law of cosines to word problems and challenge questions.

Law of Cosines Picture of Formula

Picture of the law of cosines formul;a

This is a 3 part worsheet

Model Problems.
Calculate Side using Law of Cosines
Calculate Angle using Law of Cosines
Mixed (angle and side)problems
Challenge questions
Answer Key

Video Tutorial (You Tube Style) on the law of cosines
Pictures of the law of cosines (formula, triangles laballed etc..)
Law of Sines and Cosines worksheets

Law of Cosines Worksheet (pdf)