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三角形内角和练习题课件
Author:
迟中金
Topic:
Triangles
GeoGebra
New Resources
【案例】2013年安徽高考15题
判斷球體
柱體建築師
兩位數除以一位數（二）
三位數除以一位數（二）
Discover Resources
正立方體與正三角錐
task3
S4 Circle Theorems
國旗
Quiz on Solving One-step Linear Equations (1)
Discover Topics
Similar Triangles
Square
Centroid or Barycenter
Frequency Distribution
Quadrilaterals