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仙后座找北極星1
Author:
黃義凱
GeoGebra
New Resources
【案例】2018年全国1卷理科12题
球体的体积推导（优化版）
找出對稱軸
算柱 (兩位數)
画直线等分三角形的面积
Discover Resources
Surface area of sphere
初三作业
[問題] 橢圓兩焦點 (6,0), (0,8)
周界-平移法(練習三)
Copy of 圖一
Discover Topics
Correlation
Statistics
Ellipse
Perimeter
Combinatorics