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平行线间的等积变形-第一题
Author:
tfflowers
GeoGebra
New Resources
兩組對邊相等的四邊形
兩組對邊相等和有直角的四邊形
長方體平面投影 (Codex版)
找出對稱軸
畫出對稱圖形
Discover Resources
座標軸工具
repetitive square
angle between 2 planes 03
集合的运算
圖5(動能分析)
Discover Topics
Histogram
Division
Natural Numbers
Geometric Transformations
Rational Numbers