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平行四邊形的面積
Author:
whtong
GeoGebra
New Resources
兩位數除以一位數（一）
算柱 (兩位數)
兩組對邊相等的四邊形
球體建築師
画直线等分三角形的面积
Discover Resources
T3 Geobra
觀察圖中有哪些角會相等
Ex5C#4
梯形的面積
牛頓法 (Newton's Method)的副本
Discover Topics
Rhombus
Arithmetic
Hyperbola
Definite Integral
Circumcircle or Circumscribed Circle