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Author:
johnmayhk
GeoGebra
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盈利與虧蝕
第八周作业
斐波那契螺旋弧线(表格法)
GeoGebra数学资源(4-8年级)
小学资源收集
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補角關係
三角形的內角、外角、內角和與外角和
CircleIII
角的大小比較
不可能系列-滾球
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Quadrilaterals
General Quadrilateral
Pie Chart or Circle Chart
Limits
Right Triangles