Question

For the above figure,
F + V - E = ___?
where,
F is the number of faces,
V is the number of vertices and
E is the number of edges.

• A. 2
• B. 3
• C. 4
• D. 0

Answer 1

The correct option is A

2

A face is a single flat surface of the object. An edge is a line segment between faces and a vertex, is the corner point where two or more edges meet.
So, the given figure has:
faces
6 vertices (A,B,C,D,E,F) and
12 edges (AD, AE, AB, AF, CD, CF, CB, CE, DE, EB, BF, FD).