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How about challenging yourself in this true geometric nightmare? This high-level question deals with calculating area and requires the use of trigonometry in the circumference! Watch a complete course on plane geometry • ⭕ Primitive Concepts and Definitions i... Watch a complete course on trigonometry in the circumference • Trigonometric Ratios (sine, cosine... Calculate the area of the hatched region, knowing that the circle and the quarter circle are inscribed in the square with side 2.