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Quiz on Centres of Triangles 三角形的中心：測驗
Author:
Alex CHIK
GeoGebra
gMath 互動數學教室
http://www.gmath.hk
New Resources
判斷球體
兩組對邊相等的四邊形
兩位數除以一位數（一）
【案例】圆柱体内放置一个大球六个小球
算柱 (兩位數)
Discover Resources
三角形，邊上平分面積
改變橢圓的形狀
Copy of 劉徽的「割圓術」
面積
立方體展開互動版v1.0
Discover Topics
Frequency Distribution
Similar Triangles
Circumcircle or Circumscribed Circle
Geometric Transformations
Conditional Probability