OpenStax, Algebra and Trigonometry 2e §10.2 Non-right Triangles: Law of Cosines · Exercise 19 · Trigonometry · Laws of sines & cosines
Non-right Triangles: Law of Cosines · Exercise 19
Use the Law of Cosines to solve for the missing angle of the oblique triangle. Round to the nearest tenth.
find angle
OpenStax, Algebra and Trigonometry 2e · §10.2 Non-right Triangles: Law of Cosines · Exercise 19
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