Law of sines
Property of all triangles on a Euclidean plane
Law of sines
In trigonometry, the law of sines (sometimes called the sine formula or sine rule) is a mathematical equation relating the lengths of the sides of any triangle to the sines of its angles. According to the law, a sin α = b sin β = c sin γ = 2 R , {\displaystyle {\frac {a}{\sin {\alpha }}}\,=\,{\frac {b}{\sin {\beta }}}\,=\,{\frac {c}{\sin {\gamma }}}\,=\,2R,} where a, b, and c are the lengths of the...
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