Question

According to Euler’s formula for any solid, the number of Faces (F) and vertices (V) added together is exactly two more than the number of edges (E).

Answer 1

According to Euler's formula:

$F+V=2+E$

or

$F+V-E=2$

So, for a cube,

number of faces $=6$

number of vertices $=8$

number of edges $=12$

Therefore, $6+8-12=14-12=2$

Hence, verified.