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三角形の内心・外心・重心・垂心
Author:
M1K1
Topic:
Centroid or Barycenter
,
Orthocenter
GeoGebra
New Resources
正１７角形 作図 regular 17-gon
対数螺旋
standingwave-reflection
目で見る立方体の2等分
standingwave-reflection-fixed
Discover Resources
For Situs_Analysys (位置解析のために）
Double planes
分数式の約分
数ⅡP60Q10
対称行列の固有ベクトル（ＣＡＳを使う方法）
Discover Topics
Square
Plane Figures or Shapes
Scalene Triangles
Similar Triangles
Solids or 3D Shapes