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少一塊
Author:
李春培
Topic:
Rectangle
少一塊
GeoGebra
New Resources
三位數除以一位數（二）
拼砌四邊形
判斷球體
柱體建築師
【案例】2013年安徽高考15题
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蝴蝶線 butterfly line
Measuring areas by placing different shapes
(002)80201辛宇婕
三元數大作戰
製作一個面積是18平方厘米的三角形。
Discover Topics
Square
Combinatorics
Cuboid
Special Points
Constructions