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顶点在正方形对角线上的等腰三角形构成了一个等腰直角三角形
Author:
白龙
Topic:
Triangles
GeoGebra
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兩組對邊相等的四邊形
Nested spiral octagon
算柱 (兩位數)
畫出對稱圖形
兩組對邊相等和有直角的四邊形
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黃金螺線80235康瀚螢橋國中
Building Pyramids 建造角錐體
練習 - 反射對稱
向日葵
zztest
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Ellipse
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