The Nygen family wants to put a circular fence around their pool. They want it to be exactly 11 feet from the center of the pool. How many feet of fencing do they need to buy?

Respuesta :

We can find this out by using the parameter equation for a circle
r = radius = 11
[tex]p = 2\pi r[/tex]
[tex]p = 2\times\pi\times 11[/tex]
 p = 69.115 
If we round 
 p = 69.12