You need its mass and volume.
Volume
Density is weight divided by volume. In the case of a rectangular solid, volume is length times width times height.
You divide its mass by its volume.
A cuboid or a rectangular prism.
You need its mass and volume.
on a balance
Volume
The density of a rectangular block of wood can be calculated by dividing its mass by its volume. The mass can be measured using a scale and the volume can be determined by measuring the block's length, width, and height, and multiplying these dimensions together. The density of wood typically ranges from 0.3 to 0.9 g/cm^3.
column
Density is weight divided by volume. In the case of a rectangular solid, volume is length times width times height.
Plinth
The density of an aluminum block typically ranges from 2.63 to 2.70 grams per cubic centimeter.
Block A sinks because its density is greater than the density of water, while Block B floats because its density is less than the density of water. Buoyancy force acting on an object is determined by the object's density relative to the density of the fluid it is in.
9.047619047619048
when a parallel beam hit the rectangular glass it will gave a refraction.
You have omitted the dimension of 'length' Volume -= length X Width X Height.