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perimeter of rectangle
Author:
chh127245
,
Carmel Schettino
perimeter of rectangle
GeoGebra
New Resources
兩位數加法
三位數除以一位數（一）
兩組對邊相等和有直角的四邊形
【案例】圆柱体内放置一个大球六个小球
第八周作业
Discover Resources
task 5
測試
生活中的平面圖形關係─平分
P6 圓周01B
淘宝网
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Terms
Arithmetic
Surface
Right Triangles
Planes