Question

A circle has a radius of 13 m. What is its circumference?Use 3.14 for it, and do not round your answer. Be sure to include the correct unit in your answer.13 m

Answer 1

The circumference of a circle is given by:

`C=2\pi r`

Where:

`\begin{gathered} \pi=3.14 \\ r=13m \\ so\colon \\ C=2\cdot(3.14)\cdot(13) \\ C=81.64m \end{gathered}`

Answer:

81.64 m