If the wheel doesn't slip or skid, then every time it makes
a revolution, it travels the circumference of the wheel.
If its diameter is 3.5 ft, then its circumference is (3.5 pi)
= (3.5 ft) x (22/7) = 77/7 ft = 11 ft .
In 20 complete revolutions, it travels
(20) x (11 ft) = 220 ft .
