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根軸３
Author:
Bunryu Kamimura
これは外心と同じ。
GeoGebra
New Resources
サイクロイド
正１７角形 作図 regular 17-gon
円の伸開線
standingwave
アステロイド
Discover Resources
test
M_toukai_2016B_02
Sigmoidもどき③
回転ー直線機構
正四面体の展開図
Discover Topics
Inequalities
Parallelogram
Symmetry
Surface
Pythagoras or Pythagorean Theorem