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圖二的副本
Author:
Siqiu Zeng
,
GeoGebra Institute of Hong Kong
GeoGebra
New Resources
錐體建築師
兩位數除以一位數（一）
柱體建築師
四邊形的特性
算柱 (兩位數)
Discover Resources
畢氏定理拼圖007(8片)
tetrahedron_rotation
双动点变速运动
数学涂鸦
均值不等式的一种几何证明.许兴华数学
Discover Topics
Area
Differential Equation
Natural Numbers
Kite
Intersection