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perimeter of rectangle
Author:
chh127245
,
Duane Habecker
perimeter of rectangle
GeoGebra
New Resources
判斷球體
柱體建築師
三位數除以一位數（二）
異分母分數減法
算柱 (兩位數)
Discover Resources
時間參數跳躍函數
正三角形內部一點
同心多邊形
中心投影、平行投影
相位角、頻率
Discover Topics
Parallelogram
Dilation
Rational Numbers
Symmetry
Mathematics