Question

If a car tire has a diameter of 32
inches, what is the approximate circumference of the tire?

Answer 1

r=d/2 so R= 32/3=16
Circumference is equal to two times radius times pi
So if you use 3.14 for pi then you get 32 times 3.14 which is 100.48in

Answer 2

The circumference of the tire is approximately 100.48 inches.

Explanation:

The length of a circumference is defined as

`L=2\pi r`

Where
`L` is the length,
`\pi \approx 3.14` and
`r` is the radius of the circumference.

Additionally, we know that the radius is half of the diameter, which in this case is 32 inches. So, the radius is

`r=(d)/(2)=(32in)/(2)=16in`

Replacing this radius in the expression of the length, we have

`L=2\pi r\\L=2\pi (16in)=32 \pi in \approx 100.48 \ in`

Therefore, the circumference of the tire is approximately 100.48 inches.