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外凸的正方形
Author:
宋晓燕
GeoGebra
New Resources
兩組對邊相等的四邊形
找出對稱軸
四邊形的特性
【案例】2018年全国1卷理科12题
三位數除以一位數（一）
Discover Resources
test geogebra 5.0
P3 下學期 Ex. 5 24小時報時制
三角形
畫鐘面的副本
平面截圆锥
Discover Topics
Arithmetic Operations
Vectors 2D (Two-Dimensional)
Secant Line or Secant
Mode
Linear Functions