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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
四邉形 (四年級) 教師版
柱體建築師
四邊形的特性
異分母分數減法
兩組對邊相等的四邊形
Discover Resources
圓 點 直線
How to draw a triangle with ruler and compasses?
翹翹板
以多維度解釋標準差
圆与圆的位置关系
Discover Topics
Solids or 3D Shapes
Matrices
Similar Triangles
Cube
Expected Value