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三角形の外角と二等分線の比 のコピー
Author:
kiryo
,
田中利則
GeoGebra
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standingwave-reflection
standingwave-plus
standingwave
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standingwave-reflection-free
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平方根
中点三角形と等長共役点
円柱に内接する2つの球
open,close
sekibun_bantyo_1
Discover Topics
Vectors 3D (Three-Dimensional)
Orthocenter
Constructions
Trapezoid
Incircle or Inscribed Circle