As shown in the Fig.3 the side length of square A

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As shown in the Fig.3, the side length of square ABCD is 4. Eison BC. AE is tangent to a half circle circle at point F. The half circle is inside the square with CD as diameter. Find the area of the shaded portion. Answer:___. (英汉小词典:diameter直径;tangent相切的)

难度:⭐⭐⭐

题库:高中,数学

标签:英汉,直径,词典

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