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梯形有甚麼特性？
Author:
Anthony OR 柯志明
GeoGebra
New Resources
拼砌四邊形
兩組對邊相等的四邊形
GeoGebra笔记功能体验课件
找出對稱軸
四邊形的特性
Discover Resources
由拉線80209傅筱茿螢橋國中
Copy of 圓方程 (標準式與一般式)
相同圖形的拼砌（三角形）
算柱
完全图
Discover Topics
Root
Area
Difference and Slope
Real Numbers
Volume