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通術 n円
Author:
Bunryu Kamimura
Rは大円の半径。rは中円の半径。nは円の個数。
GeoGebra
New Resources
standingwave-reflection-free
standingwave-reflection-fixed
正17角形 作図 regular 17-gon 2
平均変化率
standingwave-plus
Discover Resources
三角形の合同条件 1辺と2角
Deformation / Rotation
軌跡(2点からの和が一定)
石原光衛門2
行列の作り方
Discover Topics
Arithmetic Operations
Incircle or Inscribed Circle
Means
Scalene Triangles
Conic Sections