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1060420內接def
Author:
陳正鴻
GeoGebra
New Resources
柱體建築師
兩組對邊相等的四邊形
画直线等分三角形的面积
拼砌四邊形
四邊形的特性
Discover Resources
平行綫的斜率
Math
内切花瓣
Number of solutions of two straight lines
小学一年级上（人教版）
Discover Topics
Median Value
Translation
Perimeter
Isosceles Triangles
Stochastic Process or Random Process