Acronym	ditdiddip
Name	ditrigonal-dodecadodecahedron prism
Cross sections	©
Circumradius	1
Colonel of regiment	sidtiddip
Dihedral angles	at {5} between ditdid and pip:   90° at {5/2} between ditdid and stip:   90° at {4} between pip and stip:   arccos(1/sqrt(5)) = 63.434949°
Face vector	40, 140, 108, 26
Confer	general polytopal classes: Wythoffian polychora
External links

As abstract polytope ditdiddip is automorph, thereby interchanging the roles of pentagons and (retrograde) pentagrams, resp. those of pip and stip.

Incidence matrix according to Dynkin symbol

x x5/2o3o5/4*b

. .   . .      | 40 |  1   6 |  6  3  3 |  3  3 1
---------------+----+--------+----------+--------
x .   . .      |  2 | 20   * |  6  0  0 |  3  3 0
. x   . .      |  2 |  * 120 |  1  1  1 |  1  1 1
---------------+----+--------+----------+--------
x x   . .      |  4 |  2   2 | 60  *  * |  1  1 0
. x5/2o .      |  5 |  0   5 |  * 24  * |  1  0 1
. x   . o5/4*b |  5 |  0   5 |  *  * 24 |  0  1 1
---------------+----+--------+----------+--------
x x5/2o .      ♦ 10 |  5  10 |  5  2  0 | 12  * *
x x   . o5/4*b ♦ 10 |  5  10 |  5  0  2 |  * 12 *
. x5/2o3o5/4*b ♦ 20 |  0  60 |  0 12 12 |  *  * 2

x x5/2o3/2o5*b

. .   .   .    | 40 |  1   6 |  6  3  3 |  3  3 1
---------------+----+--------+----------+--------
x .   .   .    |  2 | 20   * |  6  0  0 |  3  3 0
. x   .   .    |  2 |  * 120 |  1  1  1 |  1  1 1
---------------+----+--------+----------+--------
x x   .   .    |  4 |  2   2 | 60  *  * |  1  1 0
. x5/2o   .    |  5 |  0   5 |  * 24  * |  1  0 1
. x   .   o5*b |  5 |  0   5 |  *  * 24 |  0  1 1
---------------+----+--------+----------+--------
x x5/2o   .    ♦ 10 |  5  10 |  5  2  0 | 12  * *
x x   .   o5*b ♦ 10 |  5  10 |  5  0  2 |  * 12 *
. x5/2o3/2o5*b ♦ 20 |  0  60 |  0 12 12 |  *  * 2

x x5/3o3o5*b

. .   . .    | 40 |  1   6 |  6  3  3 |  3  3 1
-------------+----+--------+----------+--------
x .   . .    |  2 | 20   * |  6  0  0 |  3  3 0
. x   . .    |  2 |  * 120 |  1  1  1 |  1  1 1
-------------+----+--------+----------+--------
x x   . .    |  4 |  2   2 | 60  *  * |  1  1 0
. x5/3o .    |  5 |  0   5 |  * 24  * |  1  0 1
. x   . o5*b |  5 |  0   5 |  *  * 24 |  0  1 1
-------------+----+--------+----------+--------
x x5/3o .    ♦ 10 |  5  10 |  5  2  0 | 12  * *
x x   . o5*b ♦ 10 |  5  10 |  5  0  2 |  * 12 *
. x5/3o3o5*b ♦ 20 |  0  60 |  0 12 12 |  *  * 2

x x5/3o3/2o5/4*b

. .   .   .      | 40 |  1   6 |  6  3  3 |  3  3 1
-----------------+----+--------+----------+--------
x .   .   .      |  2 | 20   * |  6  0  0 |  3  3 0
. x   .   .      |  2 |  * 120 |  1  1  1 |  1  1 1
-----------------+----+--------+----------+--------
x x   .   .      |  4 |  2   2 | 60  *  * |  1  1 0
. x5/3o   .      |  5 |  0   5 |  * 24  * |  1  0 1
. x   .   o5/4*b |  5 |  0   5 |  *  * 24 |  0  1 1
-----------------+----+--------+----------+--------
x x5/3o   .      ♦ 10 |  5  10 |  5  2  0 | 12  * *
x x   .   o5/4*b ♦ 10 |  5  10 |  5  0  2 |  * 12 *
. x5/3o3/2o5/4*b ♦ 20 |  0  60 |  0 12 12 |  *  * 2