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探究判定全等三角形的条件（SAS）！
Author:
孙敏捷
GeoGebra
New Resources
拼砌四邊形
四邉形 (四年級) 教師版
判斷球體
找出對稱軸
【案例】圆柱体内放置一个大球六个小球
Discover Resources
日照图
angle sum of polygon
線對稱圖形
完全图
堆疊正立方體 的複本
Discover Topics
Multiplication
Linear Equations
Kite
Straight Lines
Ellipse