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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Positive and Negative Space
Two-Way Tables and Ven Diagrams
Exploding cube

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SSA Triangle Investigation
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Project 01-Sheridan Flannery
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Similarity Transformation or Similarity
Hypergeometric Distribution
Sequences and Series
Logarithmic Functions
Quadrilaterals