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勒洛四面体(请下载后用geogebra5打开)
Author:
赵林
GeoGebra
New Resources
平行線的判定
撒针估算面积实验
第八周作业1
龙形曲线-分形龙2
常见四边形是否是双心四边形
Discover Resources
橢圓尺規作圖Ex01
正n星角
maths1
旋轉正方形
单位圆画三角函数图像的副本
Discover Topics
Probability
Circle
Exponent
Matrices
Perimeter