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選四塊來拼砌正方形
Author:
harryau
選四塊來拼砌正方形
GeoGebra
New Resources
第八周作业
四邊形的特性
四邉形 (四年級) 教師版
兩位數除以一位數（一）
兩組對邊相等和有直角的四邊形
Discover Resources
多邊型面積趨近圓
locus wrt two pts on two indep. circle
Angle between 2 planes in a cube
等線段作圖
線的面化
Discover Topics
Quadrilaterals
Pyramid
Linear Equations
Trigonometric Functions
Incircle or Inscribed Circle