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达芬奇椭圆仪
Author:
蔡永志
Topic:
Conic Sections
,
Ellipse
达芬奇椭圆仪
GeoGebra
椭圆规
GeoGebra
New Resources
球体的体积推导（优化版）
兩組對邊相等和有直角的四邊形
球體建築師
【案例】2018年全国1卷理科12题
判斷球體
Discover Resources
十字轉換成2正方形
三角柱算體積(可以切開)
指數與對數函數
Copy of 正多边形内接迭代
沪教版练习册7.4第4题
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Function Graph
Equilateral Triangles
Planes
Surface
Sequences and Series