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小正多边形在大正多边形内的滚动(边长相等)
Author:
孟宝兴
GeoGebra
New Resources
畫出對稱圖形
拼砌四邊形
異分母分數減法
球体的体积推导
兩組對邊相等的四邊形
Discover Resources
波羅摩及多定理
Pythagorean Theorem Proof with Shearing
微積分基本定理的副本
均值不等式的一种几何证明.许兴华数学
不信你能過 1
Discover Topics
Sine
Tangent Line or Tangent
Terms
Circumcircle or Circumscribed Circle
Conic Sections