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perimeter of rectangle
Author:
chh127245
,
Duane Habecker
perimeter of rectangle
GeoGebra
New Resources
近似值：有效數字
四邊形的特性
找出對稱軸
畫出對稱圖形
三位數除以一位數（二）
Discover Resources
畫三角形 題1a
[問題] x² + 2xy + y² + 5x + ay + b > 0
艾雪鑲嵌
勝者即正義，可愛即正義～(可用Ctrl+滑鼠滾輪放大界面)
圆锥曲线的统一定义（第二定义）
Discover Topics
Hyperbola
Ratios
Definite Integral
Distributions
Logarithmic Functions