How to Find the Angle of a Quadrilateral with an Acute Angle

The video tutorial explains how to solve a geometry problem involving a triangle. It covers the use of the cosine rule to find a side length and the sine rule to determine a missing angle. The importance of not rounding intermediate results is emphasized to ensure accuracy. The tutorial concludes with calculating the final angle and rounding it to one decimal place, along with a breakdown of how marks are allocated for each step.

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