Question

Verify Euler's formula for cylinder.

Answer 1

Euler's formula is $V-E+F=2$ where $V$ denotes the number of vertices, $E$ denotes number of edges and $F$ denotes number of faces.
We know Euler's formula is for 3-D shapes and that too which have flat faces ie. it's only valid for polyhedrons.

Since, cylinder is not a polyhedron, thus Euler's formula cannot be verified.