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可拖动A、B 改变形状
Author:
孟宝兴
GeoGebra
New Resources
畫出對稱圖形
判斷球體
找出對稱軸
四邊形的特性
兩組對邊相等的四邊形
Discover Resources
柱體建築師 1
Scatter diagram(散點圖)
Perpendicular lines
旋转体
相反数 思考（教材第10页）
Discover Topics
Arithmetic
Trapezoid
Continuity
Rhombus
Fractions