My previous message didn�t go through correctly so here it is again.

Formula for area of a circle is pi (3.14) x radius squared

Diameter of the tank is 30 ft. therefore the radius of your tank is 15 ft.

Square that = 225 sq/ft

3.14 (pi) X 225 = 706.5 sq/ft

Height of tank = 14.5 ft.

Multiply height of tank times area to arrive at the cubic feet in the tank.

14.5 X 706.5 = 10244.25 cubic/ft

There are 7.48051945 US gallons in a cubic foot. (7.5 rounded)

10244.25 cubic/ft X 7.5 gal/cft = 76831.875 gallons

We don�t know the actual volume of the tank because we don�t know the thickness of the wall or the bottom but I would think you would lose somewhere between 10 and 20 gallons due to those factors, maybe more --- so the gallonage volume comes to approximately 76,800 gallons.

Clark Womack

----- Original Message ----

From: michael lynch <

madmike3434@...>

To:

on3@yahoogroups.com
Sent: Monday, September 1, 2008 12:00:01 PM

Subject: [on3] math wizards question

I am building steel water/oil tank thats a scale 14 foot 6 inches tall

and has a scale diameter of 30 feet.

Question is , what would the gallonage be of this tank???????? ??

thank you

madmike3434

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