Lemma

Trigonometry · Chapter 8 of 11

Laws of sines & cosines

4 curated · 15 from open sources

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4
#TitleDifficultyTags
122The third sideEasyLaw of cosines
697The law of sinesEasyLaws of sines & cosines
699Area from two sides and an angleEasyLaws of sines & cosines
701A cosine in the 3-4-5 triangleEasyLaws of sines & cosines

From open sources

15

Complete problems only, with worked solutions first. Show everything

#TitleDifficulty
104297Non-right Triangles: Law of Sines · Try It 1Easy
104301Finding the Area of an Oblique TriangleEasy
104303Non-right Triangles: Law of Sines · Exercise 1Easy
104305Non-right Triangles: Law of Sines · Exercise 3Easy
104343Non-right Triangles: Law of Cosines · Try It 1Easy
104345Non-right Triangles: Law of Cosines · Try It 2Easy
104351Non-right Triangles: Law of Cosines · Exercise 3Easy
104353Non-right Triangles: Law of Cosines · Exercise 5Easy
104298Non-right Triangles: Law of Sines · Try It 2Easy
104300Non-right Triangles: Law of Sines · Try It 3Easy
104302Non-right Triangles: Law of Sines · Try It 4Easy
104307Non-right Triangles: Law of Sines · Exercise 5Easy
104347Non-right Triangles: Law of Cosines · Try It 3Easy
104348Non-right Triangles: Law of Cosines · Try It 4Easy
104349Non-right Triangles: Law of Cosines · Exercise 1Easy