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爺爺的遺產
Author:
陳隆期
GeoGebra
New Resources
斐波那契螺旋弧线（表格法-可动态调节）
直線的斜率：水平變化 & 鉛垂變化
撒针估算面积实验
异形操场
科氏力 (Coriolis Force)
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相似三角形: 重溫
圓錐曲線Conic
Volume of the Cuboid
Cycloid
有趣的梯形面積問題
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Sphere
Functions
Orthocenter
Solids or 3D Shapes
Straight Lines