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Rotational and reflectional symmetry of a regular polygon
Author:
Ngan Hok Hei
,
lamanleung
GeoGebra
New Resources
兩組對邊相等和有直角的四邊形
三位數除以一位數（一）
球體建築師
【案例】圆柱体内放置一个大球六个小球
第八周作业
Discover Resources
例題6
Helicoid
判別線型函數(隨機出題)
物理問題
下和
ｃｉｒｃｌｅ ｓｅｇｍｅｎｔ３
Discover Topics
Ellipse
Vectors 3D (Three-Dimensional)
Scatter Plot
Kite
Bar Chart or Bar Graph