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平移旋轉
Author:
chen mingchuan
GeoGebra
New Resources
畫出對稱圖形
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
兩位數除以一位數（二）
拼砌四邊形
Discover Resources
Travel Graph 行程圖
Q5-7
平行四邊形堆垛
正多邊形的對角線
正n邊形內角與外角 的複本
Discover Topics
Kite
Centroid or Barycenter
Rectangle
Histogram
Means