Acronym  dasi 
Name 
disnub icosahedron, compound of 20 oct (but not addasi) 
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Circumradius  1/sqrt(2) = 0.707107 
Inradius  1/sqrt(6) = 0.408248 
Vertex figure  2[3^{4}] 
Dihedral angles
(at margins) 

Confer  
External links 
Dasi occurs as special case of addasi.
As vertices coincide by pairs it can be viewed (like the more general addasi) with vertices counted separate (type A), or alternatively with coincident ones identified (type B).
Dasi belongs to the same regiment as gidrid.
(Type A) 120  2 2  3 1  1 ++++ 2  120 *  1 1  1 2  * 120  2 0  1 ++++ 3  1 2  120 *  1 3  3 0  * 40  1 ++++ ♦ 6  6 6  6 2  20
(Type B) 60  4 4  6 2  2 ++++ 2  120 *  1 1  1 2  * 120  2 0  1 ++++ 3  1 2  120 *  1 3  3 0  * 40  1 ++++ ♦ 6  6 6  6 2  20
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