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把心翻給妳
Author:
Wu Xiao-Ren
GeoGebra
New Resources
畫出對稱圖形
【案例】2018年全国1卷理科12题
拼砌四邊形
三位數除以一位數（二）
算柱 (兩位數)
Discover Resources
正方形和長方形有甚麼特性？
四邊形的「等角分點」
彩虹三角
一般變換的副本
异形操场
Discover Topics
Mathematics
Polygons
Square
Function Graph
Trapezoid