Acronym ... Name pentagonal butterfly wedge,blend of 2 pentagonal pyramids,half of blend of 2 pentagonal antiprisms Circumradius sqrt[(5+sqrt(5))/8] = 0.951057 Vertex figure [33,5], [3,5,3/2,5/4], and [32,5] Lace cityin approx. ASCII-art ``` o o f x x ``` Coordinates (τ/2, 1/2, 0)   & even permutations, all changes of sign, but last coordinate non-negative where τ = (1+sqrt(5))/2 Dihedral angles (at margins) between {3} and {3}:   arccos(-sqrt(5)/3) = 138.189685° between {3} and {5} (of pap):   arccos(-sqrt[(5-2 sqrt(5))/15]) = 100.812317° between {3} and {5} (of peppy):   arccos(sqrt[(5+2 sqrt(5))/15]) = 37.377368° Confer uniform relatives: ike   blend-component: peppy   compounds: 2pap-blend

Incidence matrix

```2 * * | 2 2 0 0 | 1 2 1  [33,5]
* 2 * | 2 0 2 0 | 2 2 0  [3,5,3/2,5/4]
* * 4 | 0 1 1 1 | 1 1 1  [32,5]
------+---------+------
1 1 0 | 4 * * * | 1 1 0
1 0 1 | * 4 * * | 0 1 1
0 1 1 | * * 4 * | 1 1 0
0 0 2 | * * * 2 | 1 0 1
------+---------+------
1 2 2 | 2 0 2 1 | 2 * *
1 1 1 | 1 1 1 0 | * 4 *
1 0 2 | 0 2 0 1 | * * 2
```