Acronym	sirdop
Name	small rhombidispentachoron
Cross sections	©
Circumradius	sqrt(7/5) = 1.183216
General of army	srip
Colonel of regiment	srip
Face vector	30, 90, 70, 20
Confer	Grünbaumian relatives: sirdop+10{6/2}
External links

Incidence matrix according to Dynkin symbol

reduced( x3/2x3x3o by {6/2} )

reduced( .   . . . )   | 30 |  2  4 |  4  4  2 | 2  2 2
-----------------------+----+-------+----------+-------
reduced( x   . . . & ) |  2 | 30  * |  2  2  0 | 2  1 1
         .   . x . )   |  2 |  * 60 |  1  1  1 | 1  1 1
-----------------------+----+-------+----------+-------
         x   . x .     |  4 |  2  2 | 30  *  * | 1  1 0
         .   x3x .     |  6 |  3  3 |  * 20  * | 1  0 1
         .   . x3o     |  3 |  0  3 |  *  * 20 | 0  1 1
-----------------------+----+-------+----------+-------
reduced( x3/2x3x . )   | 12 | 12 12 |  6  4  0 | 5  * *  (cho)
         x   . x3o     |  6 |  3  6 |  3  0  2 | * 10 *  (trip)
         .   x3x3o     | 12 |  6 12 |  0  4  4 | *  * 5  (tut)