297=x+2*3*x volume =297 width=x length=x+2 height=3

I think you will be looking at about 500 gallons.
598.4 US gallon.
498.3 UK Imperial gallon.

Dimension of the prism is the number of cubes in width x length x height.

Surface area is 2(w x l) + 2(l x h) + 2 (wxh)

Volume is the number of cubes.

Good luck,

Paul

Never. Even if it a regular shape.

thats 6 meters square need another factor[HEIGHT ] for cube 12x .5x ?=CUBIC

try this :

Instructions

1. Measure the rectangle length, width and height. For example, 8 inches long, 6 inches wide, 10 inches high.
   
2. Multiply the length by the height, then double the product. With this example, 8 inches multiplied by 10 inches results in 80 square inches, which multiplied by 2 equals 160 square inches.
   
3. Multiply the width by the length, then double the product. With this example, 6 inches multiplied by 8 inches equals 48 square inches, which multiplied by 2 equals 96 square inches.
   
4. Multiply the height by the width, then double the product. With this example, 10 inches multiplied by 6 inches results in 60 square inches, which multiplied by 2 equals 120 square inches.
   
5. Sum the amounts from Steps 1 through 3 to find the rectangle surface area. So adding 160, 96 and 120 square inches results in 376 square inches.
   

1 Us gallon is 231 cubic inches

V = L x W X H
2700 = 10 x 10 x X
2700 = 100 x X
x = 2700/100
x = 27

You should be able to do that in your head.

Calculating the cubic feet of a space requires multiplying the area of the bottom times the average height. You get the bottom area by multiplying the length times the width. Remember, to get cubic feet, you need all your measurements in feet to start with.

Here is your formula:

VOLUME (in cubic feet) = Length (in feet) X Width (in feet) X Height (in feet)

If it's a rectangular room you're working with, it is all straightforward. If there are irregular walls, it may be necessary to divide up the room into rectangular sections and then add together their individual volumes. If the ceiling is sloped, you need to use the height that has the same ceiling area above it as below it. Good luck! Truly.

A rectangle is a two-dimensional figure and doesn't have a volume. It has an area equal to length times width. A rectangular prism has a volume equal to length times width times height.

Right Rectangular prism, Length L, width W, Height H
Volume=2058 cm^3=L*W*H
However
L=3W, and H=2W
(3W)*W*(2W)=6 W^3=2058
W^3=(2058/6)=343
W=Cube root of 343=(343)^(1/3)=7 cm
L=3*7=21 cm
H=2*7=14 cm

We find volume by using V = H*W*L , where H = height , W = width, and L = length. You say H = 2 ft,
V = 80 ft ^3, and W = L - 3 . Put all of these back onto the equation and we will have
80 = 2 * (L - 3) * L . We can condense this to be 80 = (2*L - 2*3 ) * L then becomes 80 = 2*L*L - 2*3*L
simplifying this we get 40 = L*L - 3*L . This is also 40 = L * (L - 3) this is a quadratic equation, meaning that
we will get two answers for L. In this case L = 0 and L = 3. Since 0 ft would mean that the tool box doesn't
have a length we will use L = 3. We can now put this back into our original equation to find out what the
width is. 80 = 2 * W * 3, this is 80/6 = W = 13.3333 . Now we know that W = 13.3333 and L = 3.