Question

How is the volume of a solid is defined?

Answer 1

Have you seen your notebook has length , width and height ? Have you see circket ball it occupies some space on your hand if you take it. what are these ? of course , solid .
$\textbf{The amount of space occupied}\\\textbf{ by solid is known as }\\\underline{volume\:of\:solid}$

for example :- volume of cylinder is given by $2\pi rh$.
where r is the radius of base of cylinder and h is height of cylinder.
similarly volume of cube is $\text{side length}^3$