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円の面積と円周の増え方
Author:
nunokazu
GeoGebra
New Resources
standingwave-reflection
standingwave-plus
等積変形2
円の伸開線
sine-wave
Discover Resources
外接円が九点円に
例2①
渡辺の定理（生徒が発見した定理）
Trochoid
８つの接円の中心
Discover Topics
Combinatorics
Algebra
Distributions
Optimization Problems
Circumcircle or Circumscribed Circle