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任务10：黄金螺线与向日葵
Author:
陈丽婷
GeoGebra
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异形操场
平行線的判定
三角函数 的副本
撒针估算面积实验
龙形曲线-分形龙2
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畫三角形 題1b
snooker
數軸
堆疊多邊形
全等三角形
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Dilation
Algebra
Geometric Distribution
Rotation
Scalene Triangles