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Pappus 定理
Author:
Jia-ming Shiu
Pappus 定理
GeoGebra
New Resources
兩位數除以一位數（二）
兩組對邊相等和有直角的四邊形
四邊形的特性
三位數除以一位數（一）
第八周作业
Discover Resources
proof RHS
梯形的面積
Testing
圓心
數值滑桿_長方形1
Discover Topics
Parametric Curves
Coordinates
Equations
Isosceles Triangles
Square