Nice outing there Craig. Thanks for the report and the photos.
38deg in Cann River. Mmmmmmmm.
You do know that here in Vic we are allowed to park on the footpaths and nature strips.
So shade is always available. Just sayin'.
It's one of the reasons we are the best motorcycling state. That and lane splitting.
And stopping in front of the line at roadworks.
Anyway, I didn't see any mention of 'pi r squared'
But as your pie circumference was already squared, maybe it was just a sum of two lateral triangles.