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四心的變化
Author:
dunst_1
GeoGebra
New Resources
【案例】2018年全国1卷理科12题
兩組對邊相等的四邊形
找出對稱軸
算柱 (兩位數)
sanjiaohanshu
Membuka sumber
圓錐曲線
學習單：三角形內(外)角合
圓內接四邊形對角
HW question locus 6
作業1