Four-sided dice, abbreviated d4, are often used in tabletop role-playing games to obtain random integers in the range 1–4. Two forms exist of this die: a tetrahedron (pyramid shape) with four equilateral triangle-shaped faces, and an elongated long die with four faces.
How do you use 4-sided dice?
For your specific case of 1d4+4, you would roll a single d4, look for the result on one of the die faces (just one side, don’t factor in the other sides; they’re the same), and then add 4 to the result. So the left die shown above would be 1+4=5 and the right die shown above would be 4+4=8.
Is a d4 fair?
Single Skew d4 die, based on the scalene tetrahedron. These wacky-looking dice are actually just as fair as regular four-sided dice.
What is a fair four-sided die?
A fair 4-sided die is rolled twice and we assume that all sixteen possible outcomes are equally likely.
Are 10 sided dice fair?
Though 10-sided dice are not Platonic solids, all of their faces are the same shape and size. This means that they are as fair as Platonic solids in any reasonable situation.
Do nine sided dice exist?
Nine-sided d9 die. This design is based on spacing points as equally as possible on a sphere and then cutting planar slices perpendicular to those directions.