Question

The circumference of Tyler's bike tire is 72 inches.

What is the diameter of the tire? (Round to the nearest whole number.)

Answer 1

The answer is 70.

Step-by-step explanation:
Rounding is easy.

Answer 2

23 inches

Step-by-step explanation:

Diameter:
`d=(C)/(\pi)`

`d=(C)/(\pi) \\\\d=(72)/(3.14) \\\\d=22.929\\\\d=23`

Check your answer using the circumference of a circle:
`C=2*\pi*r`

Radius (r) = d/2. So 23/2 = 11.5

`C=2*\pi*r\\\\C=2*3.14*11.5\\\\C=72.22\\\\C=72\ inches`

Hope this helps!