Question

The formula for the circumference of a circle is C = 2LaTeX: \pi π r. If the circumference of the circle is approximately 32.7 inches, find the radius.

Answer 1

`r=5.2\ in`

Explanation:

we know that

The circumference of a circle is equal to

`C=2\pi r`

we have

`C=32.7\ in`

assume

`\pi =3.14`

substitute the values and solve for r

`32.7=2(3.14) r`

`r=32.7/[2(3.14)]`

`r=5.2\ in`