I'm really brain-dead right now. Please help. Medal!
Suzanna wants to put a square fence around her garden. If the garden covers an area of 100 squared, how many feet of fencing does she need?
A. 20
B. 40
C. 10
D. 100

I feel like I know the answer, but I don't. Ugg, ever had that feeling before? :/

@e.mccormick
@EclipsedStar
@ganeshie8
@Hero
@TheSmartOne

Question

I'm really brain-dead right now. Please help. Medal! 
Suzanna wants to put a square fence around her garden. If the garden covers an area of 100 squared, how many feet of fencing does she need? 
A. 20
B. 40
C. 10
D. 100

I feel like I know the answer, but I don't. Ugg, ever had that feeling before? :/

@e.mccormick
@EclipsedStar
@ganeshie8
@Hero
@TheSmartOne

thesmartone · Answer

Do you know what the formula for area is?

gottennis121 · Answer

D is supposed to be 400. Sorry, I'm am half asleep. :/ Formula: L x W

gottennis121 · Answer

So divide? 100/ ?

thesmartone · Answer

Exactly! And it says its a square so what would be the formula would be $\sf Area=side^2$ because width= length

thesmartone · Answer

The answer is not 10..

thesmartone · Answer

So first we have to find the length of a side.
They have told us that the area is 100 so

$\sf area=side^2$
$\sf 100=side^2$

What is side =?

gottennis121 · Answer

10 then there are 4 sides, so 40?

thesmartone · Answer

Correct! So 4x10 gets us the perimeter and so 40 is the correct answer choice! :D

gottennis121 · Answer

Thanks @TheSmartOne

thesmartone · Answer

Np :)