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電子幾何條（2014）
Author:
Anthony OR 柯志明
Topic:
Quadrilaterals
GeoGebra
New Resources
判斷球體
長方體平面投影 (Codex版)
畫出對稱圖形
Earth with coastline
sanjiaohanshu
Discover Resources
橢圓教學_2016
start and end clock face
由組織圖到頻數多邊形及頻數曲線
曾卉君的作品
正立方體裁邊 (Chamfered Cube)
Discover Topics
Step Functions
Rhombus
Parallelogram
Triangles
Multiplication