Question

A farmer wants to build a pen with radius 28 feet to House his goats. Estimate the length of the fence that the farmer will need to build the pen.

Answer 1

175.84 ft / 176 ft rounded to nearest whole number

Explanation:

Assuming this pen will be circular if it has a radius, then you would need to find the perimeter, or circumference, of the pen to find out how much fencing the farmer would need to surround the pen with a fence

The formula for the circumference of a circle is
`Cir = 2\pi r/\pi d` where

`Cir` = circumference

`\pi` = the ratio of a circle's circumference to its diameter, approximately 3.14

`d` = diameter of a circle

You would just plug in the numbers into the formula:

`Cir = 2\pi (28)\\= 2(28)\pi \\= 56\pi \\= 56(3.14)\\=175.84`

Therefore, the answer is 175.84 ft, or 176 ft rounded to the nearest whole number.