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フィボナッチ数と黄金比 The golden ratio
Author:
Bunryu Kamimura
The golden ratio
GeoGebra
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等積変形2
正17角形 作図 regular 17-gon 2
standingwave-reflection-fixed
正17角形 作図 regular 17-gon
斜めドップラー
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△ABCの相似三角形の重心と外心と垂心と擬似重心の軌跡は一点で交わる
等距離共役点
Q4-1
数列の極限
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Kite
Right Triangles
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Fractal Geometry