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固定周界的長方形面積變化
Author:
phcheng
,
GeoGebra Institute of Hong Kong
GeoGebra
New Resources
異分母分數減法
画直线等分三角形的面积
拼砌四邊形
直角坐標平面上的旋轉變換
【案例】2018年全国1卷理科12题
Discover Resources
waaachen
可變大的圓桌
數學傳播39卷4期, 平面幾何公式思考
指数函数的副本
旋转的圆锥内接锥体.许兴华数学
Discover Topics
Circumcircle or Circumscribed Circle
Mathematics
Pie Chart or Circle Chart
Hypothesis Testing
Angles