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對角線
Author:
suc
GeoGebra
New Resources
兩組對邊相等和有直角的四邊形
画直线等分三角形的面积
【案例】2018年全国1卷理科12题
四邊形的特性
找出對稱軸
Discover Resources
直线与椭圆
funny draw
滾動的圓
三角形重心
作業1
Discover Topics
LCM and GCD
Sine
Fractions
Orthocenter
Median Value