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用星星來比較圖形的大小
Author:
rogertsui
GeoGebra
New Resources
sanjiaohanshu
小数 的副本
兩組對邊相等的四邊形
近似值：有效數字
第八周作业
Discover Resources
Drawing quadrilaterals on the grid or the pinboard
利用对称求线段和最值（移动端）
繪製平行四邊形
多邊形陣列
指考題 正六邊形向量組合
Discover Topics
Ellipse
Sine
LCM and GCD
Scatter Plot
Rational Numbers