Adiameter of a tire is 2.5 ft. use this measurement to answer part a and b. a. find the circumference of the tire b. about how many times will the tire have to rotate to travel 1 mile (1 mile = 5280)

a) Circumference = 7.85 feet

b) Total complete revolution in a mile= 672

Explanation:

Given Diameter of the circular wheel = 2.5 feet

We know that radius is half of the diameter.

So, radius (r) = = 1.25 feet

a) Circumference of the circle (wheel) = 2πr

C = 2π(1.25)

C = 7.85 feet

b) Circumference of the wheel is 7.85 feet that means it cover 7.85 feet in a complete rotation.

We need to find the total number of revolution to cover the 1 mile distance

We know that 1 mile = 5280 feet

1 revolution = 7.85 feet

than

Total revolution in a mile =

Total complete revolution in a mile= 672

step-by-step explanation:

other answer is correct. i had used the radius of the radius somehow. a website: