Question

A new restaurant is attracting customers with searchlights has a radius of 2 feet. What is the searchlights circumference?

Use 3.14 for pie

Answer 1

12.56 feet

Explanation:

The perimeter of a shape is the sum of all its side.

Since circle doesn't have "sides", the perimeter is the length of the whole circle. This has the name "circumference".

The circumference of a circle has the formula:

`C=2\pi r`

Where

C is the circumference (perimeter of a circle)

r is the radius

Given,

r = 2 feet

We substitute and find the circumference, using 3.14 as
`\pi`,

`C=2\pi r\\C=2(3.14) (2)\\C=12.56`

Hence, the circumference is 12.56 feet