Question

Question 70 (iv)

Using Euler's formula. Find the value of unknown.

Faces p
vertices 6
Edges 12

Answer 1

By using Euler's formula for polyhedron
From, V = 6, E = 12 and F = p
So, F + V - E = 2
$\Rightarrow$ p + 6 - 12 = 2
$\Rightarrow$ p - 6 = 2
$\Rightarrow$ p = 2 + 6
$\Rightarrow$ p = 8