Acronym saddid TOCID symbol dID Name small dodekicosidodecahedron ` © ©` Circumradius sqrt[sqrt(5)+11/4] = 2.232951 Vertex figure [3/2,10,5,10] Snub derivation General of army srid Colonel of regiment srid Externallinks

As abstract polytope saddid is isomorphic to gaddid, sidditdid, and gidditdid, thereby replacing retrograde pentagons and decagons respectively by pentagrams and decagrams, by retrograde pentagrams and decagons, by pentagons and decagrams. – As such saddid is a lieutenant.

The small dodekicosidodecahedron is an edge-faceting of the small rhombicosidodecahedron (srid).

Incidence matrix according to Dynkin symbol

```x3/2o5x5*a

.   . .    | 60 |  2  2 |  1  2  1
-----------+----+-------+---------
x   . .    |  2 | 60  * |  1  1  0
.   . x    |  2 |  * 60 |  0  1  1
-----------+----+-------+---------
x3/2o .    |  3 |  3  0 | 20  *  *
x   . x5*a | 10 |  5  5 |  * 12  *
.   o5x    |  5 |  0  5 |  *  * 12
```

```x5/4o3x5*a

.   . .    | 60 |  2  2 |  1  2  1
-----------+----+-------+---------
x   . .    |  2 | 60  * |  1  1  0
.   . x    |  2 |  * 60 |  0  1  1
-----------+----+-------+---------
x5/4o .    |  5 |  5  0 | 12  *  *
x   . x5*a | 10 |  5  5 |  * 12  *
.   o3x    |  3 |  0  3 |  *  * 20
```

```β3o5x

both( . . . ) | 60 |  2  2 |  1  1  2
--------------+----+-------+---------
both( . . x ) |  2 | 60  * |  0  1  1
sefa( β3o . ) |  2 |  * 60 |  1  0  1
--------------+----+-------+---------
β3o .   ♦  3 |  0  3 | 20  *  *
both( . o5x ) |  5 |  5  0 |  * 12  *
sefa( β3o5x ) | 10 |  5  5 |  *  * 12
```