Question

Using Euler’s formulafind the value of X, Y and Z. Faces Vertices Edges (i) 7 10 X (ii) Y 20 30 (iii) 5 Z 9

Answer 1

F+V=E+2

F+6=12+2

F=8

F+V=E+2

5+V=9+2

V=6

F+V=E+2

20+12=E+2

E=30

Answer 2

Answer:

Using Euler’s formulafind the value of X, Y and Z. Faces Vertices Edges (i) 7 10 X (ii) Y 20 30 (iii) 5 Z 9