Question

How many faces does a solid with 5 vertices and 10 edges have?

• A. 7

Answer 1

The correct option is A 7
Given,
Vertices = 5
Edges = 10

Using Euler's formula,
$F+V=E+2$
$F+5=10+2$
$F+5=12$
$F=12-5$
$F=7$