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Author:
张书真
GeoGebra
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常见四边形是否是双心四边形
平行線的判定
直線的斜率:水平變化 & 鉛垂變化
活动三:应用性质
撒针估算面积实验
Discover Resources
商高定理之正三角形2
判斷球體 3
Introduce Tangent Ratio
雙重積分:Double Integral
戴德林球
Discover Topics
Power Functions
Optimization Problems
Ratios
Orthocenter
Step Functions