Answer:
Number of vertices = 14
Explanation:
Let e be the number of edges, f be the number of faces and v be the number of vertices.
As per the statement:
Number of edges(e) = 37
Number of faces(f) = 25
We have to find number of vertices.
Using Euler's formula:

Substitute the values we have;

⇒

Add 12 to both sides we have;
v = 14
Therefore, the number of vertices = 14