Question -
Answer -
(i) Faces = 7
Sides = 15
Vertices = 10
EulerтАЩs formula: F + V тАУ E = 2
тЗТ 7 + 10 тАУ 15 = 2
тЗТ 2 = 2
Hence, EulerтАЩs formula is verified.
(ii) Faces = 9
Sides = 16
Vertices = 9
EulerтАЩs Formula: F + V тАУ E = 2
тЗТ 9 + 9 тАУ 16 = 2
тЗТ 2 = 2
Hence, EulerтАЩs formula is verified.