how haout no
Calculus will work, if you have an equation describing the precise shape of the object. If you don't (and probably even if you do), it's far easier to actually measure it (by submerging it in water and measuring the amount of water displaced) than it is to calculate it.
lenght x weight x height
The volume of a rectangle (or any other 2D object) is always zero. An object needs to be 3D to have volume.
The volume of a rectangle is 0. It is a 2-dimensional object and so has no volume.
A square, rectangle, or trapezoid.
lenght x breadth
balance your chemical reaction equation then calculate moles, then calculate weight.
The volume of a rectangle is always 0, as a rectangle is a two-dimensional object.
0.2911cm
It is not clear what you want to calculate.
Well, its easy. Its Image lenght over Object lenght. In other words,you divide the lenght of your diagram with the lenght of the real object being drawen. If the answer is not up to one, then your diagram is smaller than the real one.
You multiply the width by the lenght.
distance
To calculate work done on an object one needs to use the following equation; work = force x distance or W = F x d
A rectangle is a two dimensional object and as such does not have a volume. Instead it has a surface area, which is defined to be the length times the width.
The equation to calculate the work done is: Work done (J) = force applied (n) x distance moved of force (m)
Force happens when an object of mass is accelerated, and the equation to calculate force is : force=mass/acceleration