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.

New Resources

Slope Illustrator (2)
Squaring a Rectangle (PST Version)
Angle Addition Postulate (V2) - Integer Solutions
Linear Equation Graphs: Thin Slice
Midpoint Theorem (V2): Integer Solutions

Discover Resources

Circunferencia
Translate the triangle using the vector
Unit Vectors: Hat i
Stapleford similarity puzzle
Dot product versus angle

Discover Topics

Intersection
Inequalities
Scalene Triangles
Vectors 3D (Three-Dimensional)
Cone