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相似確認（三角形）
Author:
Tsuyoshi Yamamoto
Topic:
Triangles
GeoGebra
New Resources
正１７角形 作図 regular 17-gon
カージオイド
目で見る立方体の2等分
sine-wave
standingwave-reflection-fixed
Discover Resources
ｙ’＝（ｘ＋１）／ｙ
円運動と単振動の変位
きのこ笠2
三角形と比の逆の証明
関数y=ax^2 値の増減
Discover Topics
Scalene Triangles
Sine
Calculus
Geometric Mean
Tangent Line or Tangent