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半圆的滚动
Author:
孟宝兴
GeoGebra
New Resources
画直线等分三角形的面积
錐體建築師
兩組對邊相等和有直角的四邊形
四邉形 (四年級) 教師版
柱體建築師
Discover Resources
動態比大小
cycloid
qqqqqq
折纸成抛物线
橢圓代數性質,光學性質,生活應用
Discover Topics
Tangent Function
Translation
Root
Area
Rational Numbers