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面積3轉正三角形
Author:
囧囧丸
GeoGebra
New Resources
找出對稱軸
兩組對邊相等的四邊形
兩組對邊相等和有直角的四邊形
三位數除以一位數（一）
【案例】2018年全国1卷理科12题
Discover Resources
四点共圆
日本國旗
編織圓
三視圖
【初中】动点问题
Discover Topics
Trapezoid
Conic Sections
Distributions
Subtraction
Circumcircle or Circumscribed Circle