等边三角形|六年级奥数题及答案

等边三角形|六年级奥数题及答案
分别以一个边长为2厘米的等边三角形的三个顶点为圆心，以2厘米为半径画弧，得到右图;那么，阴影图形的周长是_______厘米.(π取3.14)

   
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答案：
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