3 ms·
> Is it a curve of constant width like the 20p and 50p? If its sides are straight it cannot be. If I'm not mistaken it has to have an odd number of sides, but
by nerfhammer 10y ago
> Is it a curve of constant width like the 20p and 50p? If its sides are straight it cannot be.
If I'm not mistaken it has to have an odd number of sides, but it has 12.
The sides looks like they might be very slightly curved in order to facilitate rolling. But it not being of constant width could still make life more difficult for vending machines etc.