Calculating the volume of a triangle?

tfetter · 01/29/2006, 06:10 PM

Its been a while, but I am trying to figure out how big a triangle tank would be in gallons. It is going to be a corner tank and the front is going to be 5' long, the sides 30'' wide and 30" tall. If someone could help me out and show me how you got it I would appciate it, Thanks.

DJM32189 · 01/29/2006, 06:21 PM

volume of a triangle is:

Base mulitplied by the height

product is divided by 2 or multiplied by one half

jerrymlr1 · 01/29/2006, 06:23 PM

Take any side of the triangle and take a perpendicular line to the opposite angle, multiply it and divide by 2.
Example

brc0488 · 01/29/2006, 07:19 PM

1/2 base X height

Pandora · 01/29/2006, 07:31 PM

A triangle doesn't have volume, it's 2 dimensional. J/K, I know what you mean, just being a PITA

If it's a corner tank, its base is a right triangle, 2 sides are 30" each?

30 X 30 = 900, divided by 2 = 450 sq inches

Multiply this by the height, (X 30) = 13500 cub inches

If you want volume, just plug all 30's into the RC calculator, and divide by 2.

58.4 gallons

(PS: Are you sure the values you gave are correct? Because if the side lengths are correct--the ones that go against the wall-- then the front should be the hypothenuse. With each side of this right triangle being 2.5 feet, there's no way the hypothenuse could be 5 feet.)

new2u · 01/29/2006, 07:32 PM

you mean triangular prism right? a tryangle is a plane figure with an area not volume. base (one of the legs) times its hight (square root of: one leg squared minues half of one leg squared) assuming its an equaladeral triangle.

why yes i am in highschool

jerrymlr1 · 01/29/2006, 07:40 PM

[QUOTE

(PS: Are you sure the values you gave are correct? Because if the side lengths are correct--the ones that go against the wall-- then the front should be the hypothenuse. With each side of this right triangle being 2.5 feet, there's no way the hypothenuse could be 5 feet.)[/QUOTE]

Good point.

ItsMee · 01/29/2006, 07:50 PM

Click here!:

http://home.comcast.net/~jdieck1/volcalc.html

01/29/2006, 06:10 PM	#1
tfetter Premium Member Join Date: Oct 2005 Location: Scottsdale, AZ Posts: 138	Calculating the volume of a triangle? Its been a while, but I am trying to figure out how big a triangle tank would be in gallons. It is going to be a corner tank and the front is going to be 5' long, the sides 30'' wide and 30" tall. If someone could help me out and show me how you got it I would appciate it, Thanks. __________________ "By failing to prepare, you are preparing to fail." Benjamin Franklin Current Tank Info: 36x24x24 waiting to build stand and finish plumbing.

01/29/2006, 07:19 PM	#4
brc0488 Registered Member Join Date: Jan 2004 Location: maryland, Columbia Posts: 682	1/2 base X height __________________ Brandon Current Tank Info: 55 gallon- 2-55 watt PC's, 1 250 w MH, 10 gal sump w/ Nautilus TE skimmer

01/29/2006, 07:31 PM	#5
Pandora Premium Member Join Date: Dec 2001 Location: Maryland near DC Posts: 1,706	A triangle doesn't have volume, it's 2 dimensional. J/K, I know what you mean, just being a PITA If it's a corner tank, its base is a right triangle, 2 sides are 30" each? 30 X 30 = 900, divided by 2 = 450 sq inches Multiply this by the height, (X 30) = 13500 cub inches If you want volume, just plug all 30's into the RC calculator, and divide by 2. 58.4 gallons (PS: Are you sure the values you gave are correct? Because if the side lengths are correct--the ones that go against the wall-- then the front should be the hypothenuse. With each side of this right triangle being 2.5 feet, there's no way the hypothenuse could be 5 feet.) __________________ Where are we going... And why am I in this handbasket? Current Tank Info: 75gal reef tank, 30 gal octopus tank, Other: 75gal planted Amazon tank

01/29/2006, 07:32 PM	#6
new2u Registered Member Join Date: Sep 2004 Location: Atlanta / DFW Posts: 861	you mean triangular prism right? a tryangle is a plane figure with an area not volume. base (one of the legs) times its hight (square root of: one leg squared minues half of one leg squared) assuming its an equaladeral triangle. why yes i am in highschool __________________ Whats the use of Aqua man anyways. There isn't really that much water based crime... Current Tank Info: Reefer 850 XXL - LPS/Zoa Dominant mixed reef

01/29/2006, 07:50 PM	#8
ItsMee Premium Member Join Date: Aug 2004 Location: Los Angeles CA Posts: 1,861	Click here!: http://home.comcast.net/~jdieck1/volcalc.html __________________ There are 10 kinds of people who understand binary, those who do, and those who don't. Current Tank Info: Cadlight 39G pro system!

01/29/2006, 06:21 PM	#2
DJM32189 Registered Member Join Date: Jan 2005 Location: Dover, NH Posts: 150	volume of a triangle is: Base mulitplied by the height product is divided by 2 or multiplied by one half

01/29/2006, 06:23 PM	#3
jerrymlr1 Registered Member Join Date: Dec 2003 Location: Sarasota, FL Posts: 559	Take any side of the triangle and take a perpendicular line to the opposite angle, multiply it and divide by 2. Example

01/29/2006, 07:40 PM	#7
jerrymlr1 Registered Member Join Date: Dec 2003 Location: Sarasota, FL Posts: 559	[QUOTE (PS: Are you sure the values you gave are correct? Because if the side lengths are correct--the ones that go against the wall-- then the front should be the hypothenuse. With each side of this right triangle being 2.5 feet, there's no way the hypothenuse could be 5 feet.)[/QUOTE] Good point.