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保持比例
Author:
hjyanghj
Topic:
Geometry
GeoGebra
New Resources
兩位數除以一位數（一）
兩組對邊相等的四邊形
畫出對稱圖形
判斷球體
球体的体积推导（优化版）
Discover Resources
判斷柱體 6
test
平移
國旗
max_error
Discover Topics
Sequences and Series
Normal Distribution
Linear Equations
Circumcircle or Circumscribed Circle
Surface