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perimeter of rectangle
Author:
chh127245
,
Carmel Schettino
perimeter of rectangle
GeoGebra
New Resources
畫出對稱圖形
兩組對邊相等和有直角的四邊形
拼砌四邊形
異分母分數減法
第八周作业
Discover Resources
問題集
二次函數（第一階段） 完成後請下拉至其他階段
冥函数
周界
双曲线的定义
Discover Topics
Means
Tangent Line or Tangent
Logarithm
Symmetry
Coordinates