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周界
Author:
Carly
,
Anthony OR 柯志明
,
Angela Yan
GeoGebra
New Resources
拼砌四邊形
三位數除以一位數（一）
【案例】2013年安徽高考15题
兩組對邊相等的四邊形
三位數除以一位數（二）
Discover Resources
軌跡觀察---圓及正三角形上線段中點
滑桿動畫示範-1
拋物線4--平行四邊形法
Inclined plane (Angle between two planes)
沪教版练习册7.4第4题
Discover Topics
Arithmetic Mean
Random Experiments
Hypothesis Testing
Circle
Pythagoras or Pythagorean Theorem