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橢圓軌跡_過圓內一點與圓內切
Author:
Wu Xiao-Ren
GeoGebra
New Resources
兩位數除以一位數（二）
四邉形 (四年級) 教師版
判斷球體
柱體建築師
四邊形的特性
Discover Resources
斜率 - 概念及定義 (2)
指數函數圖形(底互為倒數)
梯形
扇形面積公式
Angle at Centre and Angle at circumference
Discover Topics
Triangles
Terms
Rotation
Circumcircle or Circumscribed Circle
Solids or 3D Shapes