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正17角形 作図 regular 17-gon
Author:
kobayashika64
GeoGebra
New Resources
正17角形 作図 regular 17-gon
接点の作る円は内接円
アステロイド
対数螺旋
standingwave-reflection-fixed
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高次方程式と複素数解
Gridpoint Counter(Run Offline)
中心角と円周角
数3
体5_185_ex1_2