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体5_180_ex4
Author:
Takayuki Kamei
GeoGebra
New Resources
接点の作る円は内接円
アステロイド
円の伸開線
sine-wave
standingwave-plus
Discover Resources
ジェルゴンヌ点とナーゲル点の垂足円
問題1-2(120°ver)
カスティヨンの問題 解き方1
線対称
円錐曲線2
Discover Topics
Equilateral Triangles
Trigonometry
Rotation
Logarithm
Trapezoid