Question
Easy
The number of faces (F), edges (E) and vertices (V) of a polyhedron are 7, 15 and x, respectively. Then, the value of (2F+3E-4x) is :
1
20
2
19
3
18
4
17
Question Details
Time to Solve: 12
Exam: CTET
Level/Paper: CTET_P2
Chapter: 2D Geometry
Topic: Polygons
Correct Answer
Option B
Explanation
To determine the value of \(2F + 3E - 4x\) for the given polyhedron, we need to use the information provided and apply Euler's formula for polyhedra, which states: \[ V - E + F = 2 \] Given: - \( F = 7 \) - \( E = 15 \) - \( V = x \) Substituting these values into Euler's formula: \[ x - 15 + 7 =тАжRead More
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