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五圓相切
Author:
susan
兩兩相切
GeoGebra
New Resources
兩位數除以一位數（一）
兩位數加法
兩組對邊相等的四邊形
兩位數除以一位數（二）
判斷球體
Discover Resources
分水問題
x^3+y^3-3xy
週長面積皆相等的不全等三角形
小船平移2
限制範圍
Discover Topics
Quadratic Equations
Solids or 3D Shapes
Intersection
Percentages
Area