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平行四邊形與三角形
Author:
李春培
Topic:
Area
平行四邊形與三角形
GeoGebra
New Resources
斐波那契螺旋弧线(表格法-可动态调节)
双心四边形
活动三:应用性质
常见四边形是否是双心四边形
球体的截面
Discover Resources
三角形的內心
圆柱截方
繡曲線01
兩位數除三位數(商=10)
少了一個質數One less prime number
Discover Topics
Calculus
Logic
Correlation
Difference and Slope
Square