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平行四邊形面積一
Author:
youzhen shih
Topic:
Area
GeoGebra
New Resources
兩組對邊相等和有直角的四邊形
近似值：有效數字
【案例】2018年全国1卷理科12题
三位數除以一位數（一）
畫出對稱圖形
Discover Resources
餘弦定理
平面
相似三角形證明-10306
分數乘法
仿生狗案例
Discover Topics
Trapezoid
Correlation
Scatter Plot
Parametric Curves
Arithmetic