undercoverlife2853 undercoverlife2853

21-05-2017
Mathematics

contestada

A polyhedron has 6 vertices and 9 edges. How many faces does it have?
a. 3b. 5c. 7d. 92. A polyhedron has 25 faces and 36 edges. How many vertices does it have?
a. 11b. 12c. 13d. 14

Respuesta :

gerishonwambugu gerishonwambugu

21-05-2017

from Euler equation
Vertices - Edges + Faces = 2
1. F = E - V + 2
F = 9 - 6 + 2 = 5
answer is B

2. V = E - F + 2
V = 36 - 25 + 2 = 13
Answer is c

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