first, convert everything to cm:
200 cm x 200 cm x 20 cm
(m = 100 cm, dm = 10 cm)
then:
200 x 200 x 20 = 800,000 cm3
(or 800 dm3 or 0.8 m3)
None. Multiplying two dimensions gives area, not volume.
With difficulty unless other dimensions are given.
The volume can be found by multiplying the three dimensions (depth, width and height) together. So the volume here is: 10 x 10 x 20 = 2000 square feet.
Density = Mass/Volume = 600/30 = 20 grams per ml.
You can't. The volume doesn't tell you the dimensions. There are an infinite number of combinations of dimensions that all have the same volume. If I have a rectangular solid and its volume is 60, its length, width, and height could be 1, 1, 60 1, 2, 30 1, 3, 20 1, 4, 15 1, 5, 12 1, 6, 10 2, 3, 10 2, 6, 5 3, 4, 5 . . etc. If I only tell you the volume, there's no way to know the dimensions.
20 oz is the volume. Fluid ounces measure volume, not weight.
Your dimensions are for a square. You need one more dimension for a box.
2ft by 2ft by 5ft is a possibility
None. Multiplying two dimensions gives area, not volume.
This question cannot be answered in a sensible way. A cubic metre is a measure of volume, with dimensions [L3]. A ton is a measure of mass, with dimensions [M]. Basic dimensional analysis teaches that you cannot convert between measures with different dimensions without additional information. 20 tons of lead, for example, will occupy far less volume than 20 tons of helium.
With difficulty unless other dimensions are given.
The density of steel is around 490 pounds per cubic foot, depending on grade. I'm assuming the steel bar is a cylinder because you gave me a diameter. If it is not, I am completely wrong. The volume of a cylinder is pi times the radius squared times height. Pi is about 3.14159. The radius squared is 0.01085069444 feet. The height is 20 feet. The volume of the steel bar must be 0.68176866291519189 cubic feet. Therefore the bar must weigh about 334 pounds. Hmm, seems too heavy..
The volume can be found by multiplying the three dimensions (depth, width and height) together. So the volume here is: 10 x 10 x 20 = 2000 square feet.
Density = Mass/Volume = 600/30 = 20 grams per ml.
In order to find the volume of the cylinder more information is required as to the actual dimensions of the cylinder. Volume is calculated by knowing the radius and height of the cylinder.
20cm3
Cubic meter is a unit for volume, which requires 3 dimensions, length, width, height. Knowing the length of an object is useless unless you have the other two dimensions.