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ie 8
Author:
LAM YU SANG
GeoGebra
New Resources
球體建築師
【案例】圆柱体内放置一个大球六个小球
球体的体积推导（优化版）
兩位數除以一位數（一）
四邊形的特性
Discover Resources
畫三角形 題1d
我的第一個GGB動畫
托勒密定理推廣到任意四邊形二
angle between 2 planes 01 by Mr LO WY
題 2
Discover Topics
Random Experiments
Parabola
Quadratic Functions
Rational Numbers
Congruence