Question

5. If the number of faces and vertices in a solid are 6 and 9 respectively, the number of edges are --​

Answer 1

Answer:

Faces+Vertices=Edges+2

Faces=6

Vertices=9

Let edges be x

ATQ=>6+9=x+2

=>15=x+2

=>x=15-2

=>13

:. Edges are 13.

Hope it helps you.