Math question

[LordMagicMan]

If you have a circle that is 3 inches measure around the outside, that is the diameter of that object?

I cant remember how to calculate it

 

[Nicki19]

No.

That is the circumfrence. The diameter is the width of the circle.

 

[Azwed]

Circumfrence is 2 x Pi x Radius

Radius is half the diameter.

so your formula would look like this.

3=2(pi)R and solve for R if you want the radius then multiply by 2 to get the diameter.

 

[red_rose]

Oohh...

Lemme think...

C = 2*pi*r


as in...

Circumference = 2 times pi times the radius.

Sooo....

3 inches = 2*22/7(right?) * r

 

[HeavyStick]

22/7=3.14285714

or did you want to hear someone say Pi

 

[red_rose]

Az and I are Uber dorks.

 

[seXieleXie]

the distance around the outside of the circle is the circumfrence.

the diameter of a circle is a line that goes from one side of the circle to the other and passes through the center.

if you know the circumfrence and want to find the diameter you just have to divide by pi, which you can approximate as three unless you want to be really picky.

that would give you a diameter of 1 inch.

 

[islandman]

Question for Uber Dorks

If I have a fish tank with the following measurements, how much water does it hold?

H: 12.5"

D: 10.25"

L: 20"

 

[Sillyman]

Mmmmmm... pi...

 

[michaelmt1]

Re: Question for Uber Dorks

If I have a fish tank with the following measurements, how much water does it hold?

H: 12.5"

D: 10.25"

L: 20"

Silly Q It depends on the size of the fish you have in the tank as a big fish will create a lot of displacement.


Mike

 

[red_rose]

Re: Re: Question for Uber Dorks

Silly Q It depends on the size of the fish you have in the tank as a big fish will create a lot of displacement.


Mike

Nice copout!

 

[islandman]

Re: Re: Question for Uber Dorks

Silly Q It depends on the size of the fish you have in the tank as a big fish will create a lot of displacement.


Mike

LOL

And its not a fish, its my turtle Vinny.

 

[Lasher]

Circumfrence is 2 x Pi x Radius

Radius is half the diameter.

so your formula would look like this.

3=2(pi)R and solve for R if you want the radius then multiply by 2 to get the diameter.

LOL... Wouldn't it just be a little simpler to use 3=(PI)D

 

[red_rose]

LOL... Wouldn't it just be a little simpler to use 3=(PI)D

That makes you a super uber dork.

Now answer the fish tank question, Mr. Smarty Pants!!

 

[Azwed]

Re: Question for Uber Dorks

If I have a fish tank with the following measurements, how much water does it hold?

H: 12.5"

D: 10.25"

L: 20"

well with nothing else in it but water it holds

12.5 x 10.25 x 20 = 2562.5

there are about 61 cubic inches in a liter so it hods about 42 liters.

 

[islandman]

Re: Re: Question for Uber Dorks

well with nothing else in it but water it holds

12.5 x 10.25 x 20 = 2562.5

there are about 61 cubic inches in a liter so it hods about 42 liters.

woooooooohoooooooooooooo!!!!!!!!!!!!!!


Now, what's that in gallons?

 

[Spinaroonie]

22/7=3.14285714

or did you want to hear someone say Pi

22/7 is NOT Pi!

 

[Azwed]

LOL... Wouldn't it just be a little simpler to use 3=(PI)D

It would but that is not the official formula. Most often you aren't given the diameter when working a problem and are only given the radius. It is just the way most math books and engineering books have their problems writen up.

 

[red_rose]

22/7 is NOT Pi!

Close enough!

 

[islandman]

Re: Re: Re: Question for Uber Dorks

woooooooohoooooooooooooo!!!!!!!!!!!!!!


Now, what's that in gallons?

About 10 gallons, yeah? Approx. 4 liters to a gallon, no?

 

[Nicki19]

Re: Question for Uber Dorks

If I have a fish tank with the following measurements, how much water does it hold?

H: 12.5"

D: 10.25"

L: 20"

OK.... Am I missing something? Is this some sort of trick problem?? Forgive me, I'm a mere English major, but I'm gonna give this a try....

Assuming it's a rectangular tank, thats it's not curved in anyway, and that it's empty, and filled to the very top...

2562.5 inches? = 213.54166 ft?

Why am I so blonde??

 

[Lasher]

That makes you a super uber dork.

Now answer the fish tank question, Mr. Smarty Pants!!

I think that should be "THE" super uber dork, lol.

I'm not gonna go into all the details of trying to convert cubic inches to gallons - but the dimensions sound suspiciously similar to the 10 Gallon tank we have here.

 

[Azwed]

Re: Re: Re: Question for Uber Dorks

woooooooohoooooooooooooo!!!!!!!!!!!!!!


Now, what's that in gallons?

Bah fuck gallons. the metric system is so much easier to work with.

There are about .98 liters in a quart sooo

about 10.25 gallons.

That is a approximation.

 

[Nicki19]

I think that should be "THE" super uber dork, lol.

I'm not gonna go into all the details of trying to convert cubic inches to gallons - but the dimensions sound suspiciously similar to the 10 Gallon tank we have here.

Now I get it....



I've gotta stick to literature and painting lol

 

[Lasher]

It would but that is not the official formula. Most often you aren't given the diameter when working a problem and are only given the radius.

Hmmm... But if you can't handle 2R=D, then maybe 3=2(PI)R is a little out of your league, lol.