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10/23(1)
Author:
張紜愷
GeoGebra
New Resources
四邊形的特性
四邉形 (四年級) 教師版
找出對稱軸
柱體建築師
畫出對稱圖形
Discover Resources
長方體的切割(一)
线段
太陽系
dragon(龙)
直线与平面垂直的折纸实验
Discover Topics
Complex Numbers
Rhombus
Line Segment
Secant Line or Secant
Equations