Answer:
- 5 faces
- 4 vertices
- 13 edges
Explanation:
Given two of three numbers correct, you want to find the correct value for the third number of 8 faces, 7 vertices, and 10 edges.
Euler's formula
The relation between faces, vertices, and edges is ...
F + V = E + 2
The given numbers are off by 3:
8 + 7 = 15 ≠ 12 = 10 + 2
Application
We can decrease the numbers of Faces or Vertices by 3, or we can increase the number of Edges by 3.
The numbers will be correct if we change to ...
- 5 faces, or
- 4 vertices, or
- 13 edges
#95141404393