A ruler no a better way is by dropping the cube in a liquid containg beaker displaced liquid will give you the volume
graduated cylindergraduated cylinderSubmerge your solid in a liquid the liquid volume displaced is equal to your irregular solid volume.
If you have a ruler then you could measure the length width and height and then multiply them together. (LWH is the formula)
L x W x H Lenght x Width x Hieght
Density = Mass / Volume. There is not an instrument that will measure both so you will need to measure them separately and calculate the density.
The answer will depend on what characteristic of the object is being measured: its mass, volume, surface area, colour, density etc.
Any measure of length such as a ruler, yard stick, meter stick, tape measure, etc.
Milliliters and liters are units of volume.
270 cubic inches
3456 square yards
Spheres are measured with solid angles (which are like two dimensional angles). These angles can be measure with square degrees or steradians. A sphere measures 129300/π square degrees (or about 41,253 square degrees). A sphere measures 4π steradians (or about 12.566 steradians.)
There is no "space" inside a solid figure (body).However the solid figure can be measured in terms of its volume (the amount of space it occupies).
cubic measures such as cubic feet, cubic meters