19.625cm squared because you have to divide the diameter by 2 to get the radius.
area of circle=pi times radius times radius
=3.14 times 2.5 times 2.5
=19.625cm squared
3 layer 14 cases multiply
3×14=42 cases
<span>3200/(1/3)=
3200*3/1
=9600 m
=9.6km
Final answer: 9.6 km
*HOPE I HELPED!*</span>
B is the answer. I just went over this like five minutes ago.
Hope this helps!