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三角形的外心
Author:
真呷意
外心
GeoGebra
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兩組對邊相等和有直角的四邊形
【案例】圆柱体内放置一个大球六个小球
算柱 (兩位數)
畫出對稱圖形
錐體建築師
Discover Resources
教學－直線方程性質
優良作品5(薇如)
軌跡
比較角的大小3
测试问题
Discover Topics
Prism
Geometric Transformations
Straight Lines
Pie Chart or Circle Chart
Geometric Distribution