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円周を直径で測る（円周率）
Author:
nunokazu
Topic:
Arithmetic
,
Circle
,
Division
,
Ratios
GeoGebra
New Resources
アステロイド
正１７角形 作図 regular 17-gon
カージオイド
standingwave
正１７角形 作図 regular 17-gon 2
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banner
例14
回転体4step463-2
微分係数の図形的意味
cos(nθ)のグラフ
Discover Topics
Symmetry
Statistics
Ellipse
Rectangle
Solids or 3D Shapes