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正四面体の内接球の半径①
Author:
Geo数学部屋
Topic:
Geometry
,
Mathematics
,
Pythagoras or Pythagorean Theorem
,
Similar Triangles
,
Solids or 3D Shapes
,
Sphere
GeoGebra
New Resources
斜めドップラー
平均変化率
standingwave-reflection-free
二次曲線と離心率
正１７角形 作図 regular 17-gon
Discover Resources
（使用）中一円錐回転体p186
算法天生法指南一之巻(31)
ベクトルの加法
例１円柱の展開図
傍接楕円_6x1
Discover Topics
Vectors
Trapezoid
Fractions
Rectangle
General Quadrilateral