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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
柱體建築師
判斷球體
兩組對邊相等的四邊形
兩組對邊相等和有直角的四邊形
【案例】2018年全国1卷理科12题
Discover Resources
过圆上一点作切线，三步
反射對稱
CIRCLE
疊代
Copy of 分數比較
Discover Topics
Rectangle
Pythagoras or Pythagorean Theorem
Intersection
Parabola
Bar Chart or Bar Graph