0 a straight line that goes from one side of a circle to the other side and through the centre -- diàmetre
The cake was about 30 centimetres in diameter.
We can complete it step by step however long the road is and it can't be completed however short the road is if you don't even mark your footprint.
Podem completar-lo pas a pas per molt llarg que sigui el camí i no es pot completar per curt que sigui el camí si ni tan sols marqueu la vostra petjada.