Cosine Expedition

Worksheet Description

This worksheet provides students with a series of problems that require the use of the Law of Cosines to find missing sides and angles in various triangles. Each problem presents a triangle with specific angles and side lengths provided, challenging students to use the Law of Cosines to calculate the unknown measurements. The worksheet includes a variety of triangle configurations, ensuring that students practice applying the law in multiple contexts. Students must accurately substitute the given values into the Law of Cosines formula and solve for the correct answers, paying attention to rounding as needed. This exercise offers a valuable opportunity for students to deepen their understanding of trigonometry and develop their problem-solving skills.

This worksheet is designed to teach students how to effectively apply the Law of Cosines in different geometric scenarios, particularly when dealing with non-right triangles. It helps students understand when this law is the appropriate tool to use and how to accurately perform the necessary calculations to find missing sides or angles. As students work through each problem, they build their confidence in handling more complex trigonometric relationships and improve their mathematical precision. The worksheet emphasizes the importance of accuracy and attention to detail, requiring students to carefully round their answers to the nearest appropriate value. Ultimately, this practice strengthens students’ grasp of trigonometric principles and prepares them for more advanced mathematical challenges.