Question

The radius of a circular rug is 5 feet. How much ribbing will you need to buy to go around the

Answer 1

For this case we must find the perimeter of the circular carpet.

By definition, the perimeter of a circle is given by:

$P = 2 \pi * r$

Where:

r: It is the radius of the circle

According to the statement we have:

$r = 5 \ ft$

Substituting:

$P = 2 * 3.14 * 5\\P = 2 * 3.14 * 5\\P = 31.4 \ ft$

So, you need$31.4 \ ft$

Answer:

$31.4 \ ft$

Answer 2

The length around the rug is the circumference.

The formula is C = 2 x PI x r

C = 2 x 3.14 x 5 = 31.4 feet