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.

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Solution

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).

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