2b. Cuboctahedron 8/3 6/4 from truncation of octahedron 8/3

Data

The distance from the centre of the octahedron to the centre of the triangle is EP×0.41.

The distance from the centre of the

cuboctahedron to the centre of the triangle (red) is EA×0.82.

These two distances are equal, thus EA= EP/2

Construction

EP is divided in two equal parts.

The eight triangles (red) are applied on the original triangles.

The six corners (yellow) are cut off, resulting in six squares (green-blue)

Line 1: Octahedron net and solid. .

Line 2: Cuboctahedron net and solid.