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perimeter of rectangle
Author:
chh127245
,
Carmel Schettino
perimeter of rectangle
GeoGebra
New Resources
撒针估算面积实验
GeoGebra数学资源(4-8年级)
正方形雪花图案
异形操场
第八周作业1
Discover Resources
Locus 軌跡(1T)
動態畢氏定理
初犯九點圓
三角格紋
[洋葱] 二次函数中的将军饮马-上(0420)
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Logic
Hypothesis Testing
Translation
Tree Diagrams
Pythagoras or Pythagorean Theorem