The other day at work I needed to draw a circle on the whiteboard. I did it freehand and without thinking about it too much.
It looks pretty good, even if I say so myself. It’s a plan diagram of a car’s turning circle. The class were given the circumference of the turning circle and they had to work out the kerb-kerb distance even though in reality the question wanted the wall-to-wall turning circle distance.
Giotto did far better than me [so says the legend].