Question

please answer fast and correctly irrelevant answers will be reported and deleted​

Answer 1

${\huge{\underline{\mathcal{\orange{Answer ;}}}}}$

Using Euler's Formula,

${\huge{\boxed{\mathcal{\pink{Euler's Formula = F + V - E = 2}}}}}</em></strong></p><p><strong><em>[tex]{\huge{\boxed{\mathcal{\pink{Euler's Formula = F + V - E = 2}}}}}$

here F = faces

V = Vertices

E = edges

1) find X1

Solution → F = X1 , V = 12 , E = 30

• put the values in Formula “F + V - E = 2”

X1 + 12 - 30 = 2

X1 - 18 = 2

X1 = 2 + 18

X1 = 20

2) Find X2

Solution → F = 8 , V = X2 , E = 12

According to Formula,

F + V - E = 2

8 + X2 - 12 = 2

X2 - 4 = 2

X2 = 6

3) Find X3

Solution→ F = 5 , V = 6 , E = X3

According to Formula,

F + V - E = 2

5 + 6 - X3 = 2

11 - X3 = 2

- X3 = - 9

X3 = 9

So, X1 = 20 , X2 = 6 , X3 = 9

Answer 2

Answer:

here F = faces

V = Vertices

E = edges

1) find X1

Solution → F = X1 , V = 12 , E = 30

• put the values in Formula “F + V - E = 2”

X1 + 12 - 30 = 2

X1 - 18 = 2

X1 = 2 + 18

X1 = 20

2) Find X2

Solution → F = 8 , V = X2 , E = 12

According to Formula,

F + V - E = 2

8 + X2 - 12 = 2

X2 - 4 = 2

X2 = 6

3) Find X3

Solution→ F = 5 , V = 6 , E = X3

According to Formula,

F + V - E = 2

5 + 6 - X3 = 2

11 - X3 = 2

- X3 = - 9

X3 = 9

So, X1 = 20 , X2 = 6 , X3 = 9