The Law of Sines

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The Law of Sines, which applies to any triangle, whether it is a right triangle or not, states that the sine of an internal angle of a triangle is proportional to the opposite side.

Before knowing the Law of Sines or the Law of Cosines, we could only work with right triangles (triangles with a 90 degree angle). The Law of Sines allows us to solve ANY type of triangle. In this video, I show you how to do that.