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平面截圆锥形成椭圆20190722
Author:
yxl
GeoGebra
New Resources
第八周作业
兩組對邊相等的四邊形
兩組對邊相等和有直角的四邊形
找出對稱軸
兩位數加法
Discover Resources
龍騰4_1-1講段9
滚动的硬币
几何体
組織圖、頻數多邊形
動圓定圓兩圓內切動圓圓心軌跡
Discover Topics
Linear Regression
Fractal Geometry
Logic
Scatter Plot
Square