Question 1115449
The circumference of the circle is {{{pi*d = pi*80 = 80pi}}} feet (where {{{pi}}} is approximately 3.14)
The symbol {{{pi}}} is pi


So in one full 360 degree revolution, the rider travels {{{80pi}}} feet


In 10 revolutions, the rider travels {{{800pi}}} feet (because 80*10 = 800, then just tack on the {{{pi}}})


The exact answer is {{{800pi}}}. If you use the approximation {{{pi=3.14}}}, then the approximate answer is 2512 because 800*pi=800*3.14 = 2512. The units of this answer is "feet".