@pooja195
A square floor has an area of 480 square feet. Kristin wants to put molding around the entire perimeter of the floor.
Approximately how much molding does she need?
A.
720 feet
B.
120 feet
C.
90 feet
D.
88 feet

Question

@pooja195 
A square floor has an area of 480 square feet. Kristin wants to put molding around the entire perimeter of the floor. 
Approximately how much molding does she need?
 A.
720 feet
 B.
120 feet
 C.
90 feet
 D.
88 feet

ondinana · Answer

It's  120 right? :D

anonymous · Answer

idk

mathmath333 · Answer

|dw:1426904344963:dw|

mathmath333 · Answer

question is asking u the perimeter.

mathmath333 · Answer

note that it is a square 
$\text{area of square}=(side)^2$

$\text{perimeter of square}=4\times side$

ondinana · Answer

So by my answer of 120, what exactly did I find by that? o.o

mathmath333 · Answer

$\text{area of square}=(side)^2\480=(side)^2\side=\sqrt{480}\
4\times side=4\times \sqrt{480}\
perimeter=4\times \sqrt{480}$

ondinana · Answer

Okay, I'm gonna try and work it out now. :D

mathmath333 · Answer

good  luck

ondinana · Answer

I got 87.64 so since it says approximate the answer is 88 right?

mathmath333 · Answer

yep.

mathmath333 · Answer

so answer was $88$ not $120$ right ?

ondinana · Answer

Yes, thanks for your help! ^_^