Question

The circumference of a circle is 12 inches. What is the radius

Answer 1

Greetings!

"The circumference of a circle is 12 inches. What is the radius?"...

We can use the formula to find the circumference of circle to solve this:

`2 \pi r`

Input the information we know:

`2 \pi r=12`

Solve for r, using the properties of equality:

Simplify.

`6.28r=12`
Divide both sides by 6.28

`(6.28r)/6.28=(12)/6.28`
Simplify.

`r=1.91`

The radius is 1.91cm long.

Hope this helps.
-Benjamin