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方格紙上畫梯形2
Author:
Anthony OR 柯志明
GeoGebra
New Resources
兩組對邊相等的四邊形
找出對稱軸
三位數除以一位數（一）
拼砌四邊形
異分母分數減法
Discover Resources
directed number_magnet model
固定周界長方形的面積變化（一）
巧虎_生活數學 對稱剪紙
弹簧的副本
诱导公式六（90°-α）
Discover Topics
Special Points
Division
Vectors 3D (Three-Dimensional)
Planes
Symmetry