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正三角形の頂点がつくる四角形2
Author:
Geo_Math_Room
GeoGebra
New Resources
sine-wave
standingwave
正17角形 作図 regular 17-gon 2
standingwave-plus
接点の作る円は内接円
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分数正多角形 Fractional regular polygon
等積変形 平行四辺形の面積
反転の定義
Impact_Parameter
rotation03
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Step Functions
Reflection
Mode
Special Points
Line Segment