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proof50 劉邦佑
Author:
郭亮偉
GeoGebra
New Resources
拼砌四邊形
兩組對邊相等和有直角的四邊形
四邉形 (四年級) 教師版
算柱 (兩位數)
四邊形的特性
Discover Resources
幾何作圖動畫示範
數據分析2
外積無結合律
cicle
中國火柴遊戲二
Discover Topics
Line Segment
Intersection
Parametric Curves
Integers
Symmetry