Question

A circle has a radius of 6.87 feet. What is the circumference of this circle? Use 3.14 for pi. Round your final answer to the nearest tenth.

Answer 1

`c = 2\pi r \: \\ 2\pi 6.87 = 43.17`

Answer 2

Given that radius of the circle is 6.87 feet.

radius of the circle is denoted by letter "r"

so we get r=6.87 feet

we have to find the circumference of the circle, so we will use formula of the circumference of the circle which is :

`Circumference = 2 \pi r`

Where
`\pi =3.14`

now plug the values of pi and r into above formula

`Circumference = 2 *3.14 *6.87`

`Circumference = 6.28 *6.87`

`Circumference = 43.1436`

Rounding this value to nearest tenth will give 43.1

Hence final answer is Circumference = 43.1 feet.