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19年前期ZH(103)(1)
Author:
永島 豪
GeoGebra
New Resources
正１７角形 作図 regular 17-gon
サイクロイド
対数螺旋
円の伸開線
正１７角形 作図 regular 17-gon 2
Discover Resources
算数の基礎
線対称２
立体の見え方
dandelinelip
Q4-5
Discover Topics
Linear Equations
Surface
Root
Subtraction
Standard Deviation