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周界-平移法(練習四)
Author:
Choy Wai Yan
GeoGebra
New Resources
找出對稱軸
【案例】2018年全国1卷理科12题
算柱 (兩位數)
sanjiaohanshu
兩位數加法
Discover Resources
中點軌跡(動點在兩圓上)
等弧對等角
比較分數大小
比一比看谁小
劉徽的「割圓術」 的複本