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GeoGebra
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GeoGebra
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GeoGebra
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平面截正方体
Author:
李健
GeoGebra
New Resources
撒针估算面积实验
斐波那契螺旋弧线（表格法）
斐波那契螺旋弧线（表格法-可动态调节）
异形操场
盈利與虧蝕
Discover Resources
廣義角
test02
gjc091b18 圓的割線
test geoebra1
学用数学（分季）
Discover Topics
Linear Equations
Line Segment
Polygons
Solids or 3D Shapes
Conic Sections