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月有阴晴圆缺
Author:
林峰
GeoGebra
New Resources
斐波那契螺旋弧线(表格法-可动态调节)
第八周作业3
活动三:应用性质
球体的截面
第八周作业
Discover Resources
Sangaku
Geometry : Basic Elements (幾何: 基本元素)
P6 圓的面積
半圆面积的微积分动态演示.许兴华数学
达芬奇椭圆仪
Discover Topics
Pyramid
Plane Figures or Shapes
Square
Symmetry
Tangent Line or Tangent