Question

A polyhedron has 60 edge and 40 faces. how many vertices does it have$?$

Answer 1

to find the vertices$,$

we will use Euler's formula which states that

$F+V-E=2$

$40+V-60=2$

$-20+V=2$

$V=2+20$

$V=22$

it had $22$ vertices$.$