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Author:
Kojiro Shojima, Ph.D.
GeoGebra
New Resources
直線の軌跡
正１７角形 作図 regular 17-gon 2
standingwave-reflection
サイクロイド
standingwave-reflection-fixed
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数学, 中学（Junior high school）
２つの円の位置関係
ダンデリン球(Dandelin's Spheres)
ベクトル分解
三角形の心の極線と内接二次曲線
Discover Topics
Square
Vectors 2D (Two-Dimensional)
Unit Circle
Random Experiments
Percentages