Answer: a. \(37,680\ mm^3\)
Step-by-step explanation:
We know that the volume of a cylinder is given by :-
\(V=\pi r^2 h\), where r is radius and h is height of the cylinder.
Given: The diameter of cylinder = 40 mm
The radius of cylinder =\(r=\dfrac{40}{2}=20\ mm\)
The height of cylinder = 30 mm
Then , the volume of the cylinder will be :-
\(V=(3.14) (20)^2 (30)=37680\ mm^3\)
Hence, the volume of the cylinder = \(V=37680\ mm^3\)
