Dissecting a Cube for a Regular Tetrahedron

Topic:Cube

When a cube is sliced at four corners using a plane containing three face diagonals, a regular tetrahedron is left in the middle after removing the four corners.

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အခြေခံ data အခေါ်အဝေါ်များ
Volume by Disk/Washer around y
Reflection = 180° Rotation about a Line
Locus Related to Descartes' Folium
apec

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Orthocenter Graded Assignment
一元四次方程式
פונקציית שורש ריבועי - כרטיס יישום 2 שאלה 3
Chromatic abberation - convex lens
Riemann Sums (Difference in Left and Right Approx)

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Upper and Lower Sum or Riemann Sum
Planes
Ellipse
Inequalities
Circle