Learning to apply the law of cosines when given one obtuse angle

The video tutorial explains how to use the Law of Cosines to solve for a side of a triangle when an angle is known. It demonstrates the step-by-step process of plugging values into the formula and calculating the result. The tutorial then transitions to using the Law of Sines to find an unknown angle, emphasizing the importance of not rounding intermediate values. Finally, it calculates the remaining angles of the triangle, ensuring a comprehensive understanding of solving triangles using trigonometric laws.

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