Question

a polyhedron has 12 vertices and 18 edges.find the number of faces.
​

Answer 1

Answer:

face + verticies = edge + 2

face +12=18+2

face+12=20

face =20-12=8

hope it will help u..

remember to make it as brainlist answer...

Answer 2

Answer: 8

Step-by-step explanation:

Formulae to calculate either faces (f), edges (e) ,or vertices (v). is

F+V-E=2. This is known as Euler's Formula.

So to solve it,

Write formulae , and then equate.

Step 1: F+V-E =2

Step 2: F+12-18=2

Step 3: F-6=2

Step 4: F=2+6

Step 5: F=8 (Answer)

Hope this Help you