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【小3】三角定規を重ねて、角度の大小を比較
Author:
Rie F
GeoGebra
New Resources
フーリエ級数展開
standingwave-reflection-fixed
standingwave-plus
直線の軌跡
接点の作る円は内接円
Discover Resources
廉術変換（環円廉術）
三角形の包絡線
正二十面体辺切り
メネラウスの定理
agaress
Discover Topics
Binomial Distribution
Fractal Geometry
Square
Linear Regression
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