Question

A wheel has a diameter of 3.5ft. Approximately how far does it travel if it makes 20 complete revolutions? use 22/7 for pi.

Answer 1

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 .