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2016-10-12-02
Author:
pentiumevo
GeoGebra
New Resources
兩位數除以一位數（一）
畫出對稱圖形
球体的体积推导（优化版）
拼砌四邊形
兩組對邊相等和有直角的四邊形
Discover Resources
三角形的心
S5 2D Trigonometry
Compare areas by cutting shapes Q2
旋轉指令
有趣的梯形面積問題
Discover Topics
Statistics
Percentages
Orthocenter
Rhombus
Combinatorics