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perimeter of rectangle
Author:
chh127245
,
Carmel Schettino
perimeter of rectangle
GeoGebra
New Resources
三位數除以一位數（二）
三位數除以一位數（一）
四邊形的特性
四邉形 (四年級) 教師版
找出對稱軸
Discover Resources
發現畢氏定理
河內塔 (Tower of Hanoi)
限制函數或曲線顯示的範圍
two-example
test
Discover Topics
Scatter Plot
Differential Calculus
Trigonometric Functions
Hyperbola
Rhombus