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螺旋正方形
Author:
13陳柏禎
螺旋正方形
GeoGebra
New Resources
畫出對稱圖形
兩組對邊相等和有直角的四邊形
sanjiaohanshu
三位數除以一位數（二）
拼砌四邊形
Discover Resources
Simple Interest 單利息
總結
面積2轉正三角形
Copy of 固定面積的圖形的周界變化
不規則多邊形塗色
Discover Topics
General Quadrilateral
Square
Fractions
Probability
Quadratic Functions