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[科
Author:
acchu
GeoGebra
New Resources
【案例】2018年全国1卷理科12题
兩組對邊相等的四邊形
兩組對邊相等和有直角的四邊形
四邊形的特性
拼砌四邊形
Discover Resources
相同圖形的拼砌（三角形）
Net of circular cone
运动变化的二次函数图象.许兴华数学
拼圖2
任意正N边形在圆内滚动顶点的轨迹
Discover Topics
Linear Programming or Linear Optimization
Division
Hypothesis Testing
Upper and Lower Sum or Riemann Sum
Isosceles Triangles