Question

square dfind
face vertices edge​

Answer 1

By Euler's Formula,we have:-

{F+V-E=2}

Question1:-

=> V-2=2

=> V=2+2

=> V=4

Question2:-

=>11- E=2

=>E =11-2

=>E =9

Question3:-

=>20-E=2

=>E=20-2

=>E=18

Question4:-

=>14-E=2

=>E=14-2

=>E=12

Hope It will helps you✌✌