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平行四辺形の対角線上の面積その２.ggb
Author:
T.Fujimaki
GeoGebra
New Resources
サイクロイド
カージオイド
接点の作る円は内接円
等積変形2
正１７角形 作図 regular 17-gon
Discover Resources
闘う図形と方程式
random melody
問59
クリア_Clear36
Q4-3
Discover Topics
Congruence
Pie Chart or Circle Chart
Poisson Distribution
Similar Triangles
Percentages