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GeoGebra
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第八周作业3
龙形曲线-分形龙
双心四边形
常见四边形是否是双心四边形
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Reflection 反射變換
Cross sections of cube
截面法體積(1)
复数的模 计算 自动批改
诱导公式四(原点对称关系)
Discover Topics
Histogram
Isosceles Triangles
Geometric Transformations
Means
Line Segment