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Ex_47
Author:
早苗雅史
GeoGebra
New Resources
standingwave-plus
対数螺旋
円の伸開線
正17角形 作図 regular 17-gon
standingwave
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内接円証明
いろいろ
立方体の切断面
傍心三角形と心
北海道2007
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Statistics
Ratios
Isosceles Triangles
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Translation