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Author:
陳兪宏
硯吉老師幾何題
GeoGebra
New Resources
兩組對邊相等和有直角的四邊形
【案例】2018年全国1卷理科12题
球体的体积推导（优化版）
画直线等分三角形的面积
【案例】圆柱体内放置一个大球六个小球
Discover Resources
鏡射矩陣
過圓內c點的弦中點軌跡
Proof1 彭凱揚
周界
Inclined plane (Angle between two planes)
Discover Topics
Dilation
Distributions
Addition
Limits
Sphere