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vernier caliper
Author:
ken@ylshsap
GeoGebra
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随机三角形背景
繪畫梯形
伞骨架模型
GeoGebra游戏案例集
可拖动A、B 改变形状
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尺規作圖找平方根點(以根號2為例)
畢氏定理的圖形證明法
实心曲面几何体
Angles in Alternate Segment
用几何概型估计pi值
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Ellipse
Linear Functions
Cuboid
Rotation
Equilateral Triangles