Answer:
A Cylinder is
a three-dimensional shape whose cross-sections are all circles of
the same radius. It could be solid like a stick of rock or hollow
like a can. By opening out the label on the can of soup it can be
seen that the area of the curved part of a cylinder is given by
Circumference x height = π d x h = π d h.
The Volume of
a cylinder is area of the circular base x height
= π r2 x h = π r2 h
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