Question

A wheel has a radius of 15 cm. Approximately how far does it travel in 4 revolutions?

47.1 cm


94.2 cm


188.4 cm


376.8 cm

Answer 1

Radius is 15 cm
Circumference = 2 pi r
C = 2 x 3.14 x 15cm
C = 94.2 cm
94.2 cm x 4 (revolutions) = 376.8 = D