width x length x height
ANSWER:If the cement block has holes in it and isn't solid like a brick, you can use the water displacement method.Multiply the height, width and breadth:
height x width x breadth = volume of a block
Measure its length = L cm
Measure its breadth = B cm
Measure its height = H cm
Then volume = L*B*H cubic cm.
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Block being a box: Height * Length * Depth = Volume Giving the three dimensions available.
The blocks are of volume 1, 10, 100, 1000 cubic units.
The answer depends on what information you have been provided with. If you have only the linear dimensions then it is: Length * Breadth * Height
If it is a cubical block, the volume is simply length x height x width.
IF you knew the volume of the block and the density of the material it was made of you could calculate it mass (mass = density * volume) but it is normal to measure the mass of something using a mass balance.
You cannot calculate volume of surface area. If you meant 20m3, then the volume would be 20,000 litres.
If the density of the block is less than the density of water, then the block will float. Density of water is close to 1 gram per cubic centimeter. So measure the block and calculate its volume (Length x Width x Height). Use a scale to find the block's mass. Then divide mass/volume to calculate density. If you've measured in grams and centimeters, then the units will be g/cm³, then compare this to 1 g/cm³.
Weigh the blockcalculate the volume of the block. This is done by measuring the length, height, and width of the block if it is rectangular. If it is some other shape then other mathematical formula apply. If it is an irregular shape for which no formula exists then you can estimate the volume by incremental methods or by displacement.divide weight by volume.
Not enough information. To calculate mass, you would need volume and density (mass = volume x density).
The amount of water displaced by the block is the volume of the block. so (volume of water with block in it)-(original volume of water)= volume of block
You need three linear measures (length, breadth and height) to calculate a volume.
What is a "four inch" hollow block ? ? ? In order to calculate the volume, three dimensions are required . . . length, width, and height. If all three dimensions of this block are equal ... 4 inches ... then the volume is 4 x 4 x 4 = 64 cubic inches.