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.