CUET Preparation Today
CUET
General Test
Quantitative Reasoning
Geometry
If a polyhedron has 6 vertices and 12 edges. What is the number of faces it has?
6
8
12
18
By Euler’s formula we know that: For any polyhedron Face + Vertex – Edge = 2 Face = 2 - Vertex + Edge Face = 2 – 6+12 = 8