Question

class 8 slove the question

Answer 1

Step-by-step explanation:

according to eular's formula

E + 2 = F + V

here

E = 20

F = 10

V = 15

=> 20 + 2 ≠ 10 + 15

=> 22 ≠ 25

so there cannot be such polyhedron

Answer 2

Step-by-step explanation:

No a polyhedron cant have 10 faces , 20 edges, and 15 vertices as eulers formula is not satisfied

euler's  formula = faces+ vertices-edges = 2

                                10 + 15-20 = 2

                                  25-20  = 2

                                         5 is not equal to 2

so it cant have  10 faces , 20 edges, and 15 vertices