# Best answer: Are 30 sided dice fair?

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Sorry to break the hearts of all the RPGers out there, but by Diaconis’ reckoning, the aforementioned 30-sided die (otherwise known as a rhombic triacontahedron) isn’t actually “fair.” Even if its 30 faces are of the same surface area, they aren’t sharing the same number of vertices (angular points).

## How do you know if a dice is fair?

The ol’ golf ball test

Place the die in the water, note which side of the die faces upwards, and then give it a flick. For reasonably balanced dice, you should see a good variety of numbers facing upwards. For badly balanced dice, you’ll probably see the same one or two faces regularly. Throw those bad dice out.

## What is a fair number dice?

In Mathematics, a single fair die or one fair dice is what we mean that there is an equally likely chance of landing on any face. So long as there is an equal possibility of landing on any face then they are Fair Dice.

## 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.

## What is a 50 sided die called?

Rarer variations

Faces/ sides Shape Notes
48 Disdyakis dodecahedron Each face is a scalene triangle.
50 Icosikaipentagonal trapezohedron Each face is a kite.
60 Deltoidal hexecontahedron Each face is a kite.
Pentakis dodecahedron Each face is an isosceles triangle.
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