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Circumference 圓周
Author:
Alex CHIK
GeoGebra
GeoGebra 互動數學教室
http://www.geogebra.hk
New Resources
球体的体积推导
【案例】2018年全国1卷理科12题
判斷球體
兩位數加法
兩組對邊相等和有直角的四邊形
Discover Resources
高二上_圓_圓內一點所有弦的中點軌跡
進入拋面的平行光會反射至焦點
好多好多正方形
謝爾賓斯基三角形
勾股定理（几何原本）的副本
Discover Topics
Differential Equation
Solids or 3D Shapes
Conic Sections
Parallelogram
Conditional Probability