so if Ryan's wheel is 2.2ft in diameter, that simply means, the radius is half that, or 1.1ft, how much terrain does it cover in one-go-round? or a cycle/revolution
well, it covers the arc of the circumference, now, the circumference of a circle is C=2πr <-- r = radius, now, r = 1.1 then C=2π*1.1
how many go-round are there then in 248ft? well [tex]\bf \cfrac{248}{2\pi \cdot 1.1}[/tex]