| The key-step of construction |
The needed skill |
|
|
starting with triangular cupola |
|
|
end with Central symmetry for the cupola |
Triangular orthobicupola
¡@
| The key-step of construction |
The needed skill |
|
|
starting with triangular cupola |
|
|
end with Central symmetry for the cupola |
¡@
