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perimeter
Author:
Angela Yan
,
Anthony OR 柯志明
perimeter
GeoGebra
New Resources
判斷球體
找出對稱軸
第八周作业
畫出對稱圖形
兩組對邊相等和有直角的四邊形
Discover Resources
Is this a prism 10
正八面體
疊代三角形
Fill the circle的副本
割圆术估计圆周率（刘徽）
Discover Topics
Variance
Quadratic Functions
Tree Diagrams
Expected Value
Angles