Law of Cosines Teacher Resources
Find Law of Cosines educational ideas and activities
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Law of Cosines
In this Law of Cosines worksheet, 10th graders solve 10 different problems related to applying the Laws of Cosine. First, they determine the length of a side rounded to the nearest integer. Then, students determine the largest angle of a triangle described to the nearest degree.
10th Math 3 Views 11 Downloads
Five Multiple Choice Law of Cosines Problems
In this law of cosines worksheet, students determine angle measures, area, and number of solutions in five multiple choice problems by applying the law of cosines. The solutions are provided by clicking on the "Check It" button found on the bottom of the page.
9th - 12th Math 3 Views 6 Downloads
Law of Cosines
In this cosine worksheet, students will find the length of the third side of a triangle given the length of the other two side. Students will use the Law of Cosines to find the length of the missing side. Answers will be rounded to 3 decimal places for the length and 1 decimal place for angle measures.
9th - 12th Math 3 Views 5 Downloads
In this activity, geometers are asked to solve a real-world problem involving a construction project on a college campus. Students work in groups to come up with a proposal for the construction. In doing so, they must consider dimensions of some existing structures and propose a solution that meets certain requirements.
9th - 11th Math 5 Views 7 Downloads CCSS: Designed
Basic Theorems and Proofs
In this pre-calculus learning exercise, 11th graders recall the three forms of the law of cosines and used it to solve problems involving triangles. They also write out the laws of sines and use those to solve problems with angles. There are 15 questions.
11th Math 3 Views 10 Downloads
Why We Study Trigonometry
Students investigate the different properties of trigonometry. In this precalculus lesson, students find the six different identities of trigonometric ratios. They relate the ratios to that of a right triangle and apply it to real life scenarios.
10th - 11th Math 7 Views 61 Downloads