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正20面體與正12面體
Author:
官長壽(longlife)
GeoGebra
阿壽工坊---
http://120.101.70.8/longlife/
New Resources
活动三:应用性质
科赫雪花
第八周作业3
异形操场
常见四边形是否是双心四边形
Discover Resources
Area of Trapezium
How to reconstruct a quadrilateral farm to a triangular one with the same area?
Testing: addition
圓內冪性質
正圆锥展开图
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Reflection
Confidence Interval
Scatter Plot
Constructions
Fractions