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Our reader Vladimir Skvortsov sent:

"Your Graduation" No. 6 helped me create a 3d model of the 14th form of the icosahedron. I did not stop there ...

Look at the photo. This is the only one of its kind model of a polyhedron made of concrete - the Fourteenth stellated form of an icosahedron. The description of the model is in the book of Magnus Wenninger. The diameter of my model is 1330 mm. "

MODEL COORDINATES

56*53*16.76" N

60*52*56.43" E

And at the moment, I am engaged in the manufacture of the Szilassi polyhedron.

1. The radius of the sphere circumscribing the polyhedron;

2. The radius of the sphere inscribed in the polyhedron;

3. The surface area of the polyhedron;

4. The volume of the polyhedron.