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相同圖形的拼砌（三角形）
Author:
ho ting chit
Topic:
Triangles
GeoGebra
New Resources
四邊形的特性
球體建築師
三位數除以一位數（一）
【案例】2013年安徽高考15题
拼砌四邊形
Discover Resources
Vector equation in R2
優良作品1(沛綺)
小數加減
圆锥曲线
江苏高考物理最后一题模拟
Discover Topics
Coordinates
Terms
Upper and Lower Sum or Riemann Sum
Arithmetic Operations
Plane Figures or Shapes