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perimeter of rectangle
Author:
chh127245
,
Carmel Schettino
perimeter of rectangle
GeoGebra
New Resources
異分母分數減法
找出對稱軸
画直线等分三角形的面积
算柱 (兩位數)
兩組對邊相等的四邊形
Discover Resources
複雜的解法
數位學習社12/15
二年級-柱體的觀察
巴拉拉能量
推移（x 方向）的副本
Discover Topics
Exponential Functions
Circle
Dilation
Pythagoras or Pythagorean Theorem
Similar Triangles