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sun2
Author:
ypy
GeoGebra
New Resources
兩位數加法
兩位數除以一位數（一）
拼砌四邊形
【案例】圆柱体内放置一个大球六个小球
柱體建築師
Discover Resources
Net of a cylinder
B小學今星期的遲到人數
Redefining Trigonometry by a Unit Circle
兩面角
Locus (Non parallel lines) _a
Discover Topics
Parametric Curves
Binomial Distribution
Rhombus
Logarithm
Sequences and Series