Question

. A polyhedron has 20 faces and 12 vertices, find its no. of edges.​

Answer 1

Step-by-step explanation:

faces of polyhedron=20

vertices=12

then,

edges=E

then,

Faces+vertices-Edges=2. ( Euler's formula)

20+12-E=2

32-E=2

-E=2-32

-E=-30

E=30 answer

thanks