Verify Euler's formulae V+F-E=2 in case of : Cone
In a cone,
number of vertices = 1
number of faces = 1
number of edges = 1
Euler's formula,
V+F-E=1+1-1=2
Hence, verified.
Verify Euler's formulae V+F-E=2 in case of : sphere
Verify Euler's formulae V+F-E=2 in case of : Cube