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错觉多边形
Author:
冯伟冀
Topic:
Geometry
GeoGebra
New Resources
柱體建築師
画直线等分三角形的面积
兩位數除以一位數（二）
四邊形的特性
三位數除以一位數（一）
Discover Resources
立方體截痕
area 面積3
教案一
數學電腦繪圖&解題
恆等式
Discover Topics
Mode
Linear Programming or Linear Optimization
Secant Line or Secant
Arithmetic Operations
Upper and Lower Sum or Riemann Sum