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The lower sides of the two equilateral triangles are parallel. If the side of the bigger equilateral triangle is 36, and the perimeters of the smaller equilateral triangle and the trapezoid beneath are the same, what is the side of the smaller equilateral triangle?
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· 相关考点
4.3.6 等边三角形
4.3.6 等边三角形
以上解析由 考满分老师提供。