Answer: its the 3rd one if im wrong im sorry
:3
If you make a dot at (1,5) which is 1 on the x axis and 5 on the y axis, you will see that the dot is up in the white area, so it is not a solution.
a solution would be in the red area.
C=pid
d=diameter
d=4
C=4pi
tada
if you want
aprox pi=3.14
C=12.56 units
Two inequalities. A graph is shown.