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圆锥的侧面展开图3D动画的副本
Author:
吉顺国
拖动点C
圆锥的侧面展开图是三角形吗?
New Resources
球體建築師
錐體建築師
画直线等分三角形的面积
兩組對邊相等和有直角的四邊形
球体的体积推导(优化版)
Discover Resources
廣義角的代換(90度加減角度)
優良作品2(怡雯)
密鋪圖形
數學素養試題
彩色莫比乌斯环
Discover Topics
Conic Sections
Subtraction
Quadratic Functions
Kite
Curve Sketching