Anybody good with math?

Moparty08 · Post by **Moparty08** » Fri Jul 24, 2009 7:30 pm

I'm trying to get a border around my pool to fill in with rocks for drainage. I need to know the perimeter of my pool so i know how much to buy. The pool is oval. The length of the pool is 30 feet and the width is 15.

I'm guessing the perimeter would be close to 100 feet but i'd like to get a more accurate estimate. Thanks to anyone who can help.

Post by **racer12306** » Fri Jul 24, 2009 7:56 pm

77 feet if I'm doing it right. Been a while since I messed with math. Even though this is a simple thing.

Moparty08 · Post by **Moparty08** » Fri Jul 24, 2009 7:58 pm

It would be easy if it was just a rectangle cause you just add the sides together but with an oval i'm like what the crap

fixitmattman · Post by **fixitmattman** » Fri Jul 24, 2009 8:43 pm

Did you pass grade school at all?

pi: more than just something you eat.

Assuming it's 30ft to the ends of the oval basic math says 77 and change, round up to 78 to make sure you have enough.

SOKADAO954 · Post by **SOKADAO954** » Fri Jul 24, 2009 8:51 pm

I got 78 and some change

but hey... i hate math.

Moparty08 · Post by **Moparty08** » Fri Jul 24, 2009 9:02 pm

I got kicked out of school after 6th grade then went to sped schools and crap till 12th grade where i didn't learn much at all. I still graduated though somehow. Thanks alot guys

03blackrt · Post by **03blackrt** » Fri Jul 24, 2009 10:54 pm

If it's exactly 30ft x 15ft...

871.9603 in

~72 ft 8 in

Moparty08 · Post by **Moparty08** » Fri Jul 24, 2009 11:05 pm

Thanks man. I ordered one too many than. I'll just have to return one then.

DuhNeon179 · Post by **DuhNeon179** » Sat Jul 25, 2009 12:38 am

if this helps 2 + 2 = 4

TeckNeon · Post by **TeckNeon** » Sat Jul 25, 2009 12:51 am

DuhNeon179 wrote:if this helps 2 + 2 = 4

Shit...I got 3.999999

LowNSlow · Post by **LowNSlow** » Sat Jul 25, 2009 1:03 am

DuhNeon179 wrote:if this helps 2 + 2 = 4

Any reason to be a dick or you just one for fun?

Moparty08 · Post by **Moparty08** » Sat Jul 25, 2009 1:38 am

Just asking a question. It's not like i'm posting pics of a riced out neon or anything so why the bs?

Post by **racer12306** » Sat Jul 25, 2009 10:06 am

03blackrt wrote:If it's exactly 30ft x 15ft...

871.9603 in

~72 ft 8 in

hmmm, how do you get that? Two of us got 77.x

the radius of the ends is 7.5
so, 3.14x15 = full diameter of the rounded ends = 47.1
47.1+15+15 = 77.1

DuhNeon179 · Post by **DuhNeon179** » Sat Jul 25, 2009 10:59 am

Im just doing it for fun

03blackrt · Post by **03blackrt** » Sat Jul 25, 2009 11:26 am

racer12306 wrote:
03blackrt wrote:If it's exactly 30ft x 15ft...

871.9603 in

~72 ft 8 in
hmmm, how do you get that? Two of us got 77.x

the radius of the ends is 7.5
so, 3.14x15 = full diameter of the rounded ends = 47.1
47.1+15+15 = 77.1

In construction (the house building kind of construction) it's far more likley to be an elipse and not an oval.

fixitmattman · Post by **fixitmattman** » Sat Jul 25, 2009 1:42 pm

Unless he says his pool is oval. In that case it's far more likely to be an oval.

Honestly, I've yet to see an elliptical pool. All the ones I've seen have either been square or oval.

Paul56 · Post by **Paul56** » Sat Jul 25, 2009 2:13 pm

Calculating the perimeter of an ellipse...

http://www.mathsisfun.com/geometry/elli ... meter.html

Someone else can do the work.