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面鏡的反射
Author:
dunst kang
GeoGebra
New Resources
兩組對邊相等的四邊形
拼砌四邊形
画直线等分三角形的面积
四邊形的特性
算柱 (兩位數)
Discover Resources
阿基米德(3,6,6)
判斷柱體 5
藝術著色
Interest（利息）
ｃｉｒｃｌｅ ｓｅｇｍｅｎｔ
Discover Topics
Right Triangles
Triangles
Natural Numbers
Volume
Random Experiments