Question

The circumference of a circular painting is 47.1 feet. What is the radius of the painting? Use 3.14 for π and do not round your answer.

Answer 1

The cirfumference of a circle is:

`C=2\pi *r`

Use the formula above and the given data to find the radius:

`\begin{gathered} 47.1ft=2(3.14)*r \\ \\ r=(47.1ft)/(2(3.14)) \\ \\ r=7.5ft \end{gathered}`

Then, the radius of the circular painting is 7.5 feet