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Anybody good with math?
Posted: Fri Jul 24, 2009 7:30 pm
by Moparty08
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.
Posted: Fri Jul 24, 2009 7:56 pm
by racer12306
77 feet if I'm doing it right. Been a while since I messed with math. Even though this is a simple thing.
Posted: Fri Jul 24, 2009 7:58 pm
by Moparty08
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
Posted: Fri Jul 24, 2009 8:43 pm
by fixitmattman
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.
Posted: Fri Jul 24, 2009 8:51 pm
by SOKADAO954
I got 78 and some change
but hey... i hate math.
Posted: Fri Jul 24, 2009 9:02 pm
by Moparty08
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
Posted: Fri Jul 24, 2009 10:54 pm
by 03blackrt
If it's exactly 30ft x 15ft...
871.9603 in
~72 ft 8 in
Posted: Fri Jul 24, 2009 11:05 pm
by Moparty08
Thanks man. I ordered one too many than. I'll just have to return one then.
Posted: Sat Jul 25, 2009 12:38 am
by DuhNeon179
if this helps 2 + 2 = 4
Posted: Sat Jul 25, 2009 12:51 am
by TeckNeon
DuhNeon179 wrote:if this helps 2 + 2 = 4
Shit...I got 3.999999
Posted: Sat Jul 25, 2009 1:03 am
by LowNSlow
DuhNeon179 wrote:if this helps 2 + 2 = 4
Any reason to be a dick or you just one for fun?
Posted: Sat Jul 25, 2009 1:38 am
by Moparty08
Just asking a question. It's not like i'm posting pics of a riced out neon or anything so why the bs?
Posted: Sat Jul 25, 2009 10:06 am
by racer12306
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
Posted: Sat Jul 25, 2009 10:59 am
by DuhNeon179
Im just doing it for fun
Posted: Sat Jul 25, 2009 11:26 am
by 03blackrt
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.
Posted: Sat Jul 25, 2009 1:42 pm
by fixitmattman
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.
Posted: Sat Jul 25, 2009 2:13 pm
by Paul56
Calculating the perimeter of an ellipse...
http://www.mathsisfun.com/geometry/elli ... meter.html
Someone else can do the work.
