Law of Cosines Teacher Resources
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Law of Cosines—Law of Sines and Law of Cosines
9th - 12th CCSS: Adaptable
Laws are not always made to be broken! Scholars learn how following the Law of Cosines can help to find unknown measures. They first derive the formula and then apply it to triangles. The activity concludes the two-part series from...
Putting the Law of Cosines and the Law of Sines to Use
11th - 12th CCSS: Designed
Use the Law of Cosines and the Law of Sines to solve problems using the sums of vectors. Pupils work on several different types of real-world problems that can be modeled using triangles with three known measurements. In the process,...