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动态三角形
Author:
GeoGebra Institute of WuXi
if指令的应用
GeoGebra
New Resources
畫出對稱圖形
三位數除以一位數（一）
【案例】2018年全国1卷理科12题
兩位數除以一位數（一）
算柱 (兩位數)
Discover Resources
阿波羅圓
三角形外心
Copy of 随机模拟实验（撒豆子估算π）
Light reflected in hyperbola的副本
統整數學魏宇辰
Discover Topics
Arithmetic Mean
Arithmetic
Expected Value
Line Segment
Secant Line or Secant