Question
Easy
The number of vertices (V), edges (E) and faces (F) of a polyhedron are respectively 10, 15 and x. Then, the value of (3x-12) is :
1
7
2
9
3
14
4
18
Question Details
Time to Solve: 12
Exam: CTET
Level/Paper: CTET_P2
Chapter: 2D Geometry
Topic: Visualizing Solid Shapes
Correct Answer
Option B
Explanation
To determine the value of \(3x - 12\) for the given polyhedron, we can use Euler's formula for polyhedra, which states: \[ V - E + F = 2 \] where \( V \) is the number of vertices, \( E \) is the number of edges, and \( F \) is the number of faces. According to the problem, we have: - \( V = 10 \) - \(…Read More
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