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Copy of Triangular Number
Author:
Ronan Downes
,
Alex CHIK
GeoGebra
GeoGebra 互動數學教室
http://www.geogebra.hk
New Resources
【案例】圆柱体内放置一个大球六个小球
兩位數除以一位數（一）
拼砌四邊形
兩組對邊相等和有直角的四邊形
找出對稱軸
Discover Resources
圓的面積
Primary Mathematics
P6圓周和直徑(一)
閱讀量杯
文創花燈
Discover Topics
Derivative
Rotation
Square
Hypergeometric Distribution
Angles