cube | 1 triangular prism | sqrt(3)/4 pentagonal prism | 1/4 sqrt(5 (5 + 2 sqrt(5))) hexagonal prism | (3 sqrt(3))/2 heptagonal prism | root of 4096 x^6 - 62720 x^4 + 115248 x^2 - 16807 near x = 3.63391 octagonal prism | 2 (1 + sqrt(2)) nonagonal prism | root of 4096 x^6 - 186624 x^4 + 1154736 x^2 - 177147 near x = 6.18182 decagonal prism | 5/2 sqrt(5 + 2 sqrt(5))

1 (12 edges)

1 (9 edges)

1 (15 edges)

1 (18 edges)

1 (21 edges)

1 (24 edges)

1 (27 edges)

1 (30 edges)