Question

If the number of face and vertices in a solid are 7 and 10 respectively the number of edges are =

Answer 1

Answer:

Faces+Vertices=Edges+2

Faces=7

Vertices=10

Let edges be x

ATQ=>7+10=x+2

=>17=x+2

=>x=17-2

=>15

:. Edges are 15.

Hope it helps you.

Step-by-step explanation:

Answer 2

The number of edges is 15

Given : The number of face and vertices in a solid are 7 and 10 respectively.

To find : The number of edges.

Solution :

We can simply solve this mathematical problem by using the following mathematical process. (our goal is to calculate the number of edges)

Here, we will be using the following mathematical formula.

F + V = E + 2

Here,

• F = Number of faces
• V = Number of vertices
• E = Number of edges

In this case,

• F = 7
• V = 10
• E = ? (unknown quantity)

By, putting the available data in the above mentioned mathematical formula, we get :

7+10 = E + 2

17 = E + 2

E = 17-2

E = 15

So, number of edges = E = 15

(This will be considered as the final result.)

Hence, the number of edges is 15