Question

The outside radius of a truck tire is 11 inches. Approximately how far will the truck have traveled after 3 rotations of the these tires

Answer 1

The distance = 207.3 inches

Explanation:

∵ The distance = number of revolution × circumference

∵ The radius of the circle = 11 inches

∴ The circumference = 2 × π × r = 2 × π × 11 = 22π inches

∵ Number of revolution = 3

∴ The distance = 3 × 22π = 66π = 207.3 inches