A round birthday cake is cut into 16 equal pieces. if the cakes diameter is 4 inches what is the area of one piece of cake ?
A. 38.48 in
B. 19.2 in
C. 5.5 in
D. 14.36 in
E. 9.62 in

PLEASE HELP
THANKS :)

Question

A round birthday cake is cut into 16 equal pieces. if the cakes diameter is 4 inches what is the area of one piece of cake ?
A. 38.48 in
B. 19.2 in
C. 5.5 in
D. 14.36 in
E. 9.62 in

PLEASE HELP
THANKS :)

anonymous · Answer

the area of the whole cake is Pi*r^2=4Pi
if we cut it into 16 equal pieces we have 4Pi/16=Pi/4
so something is not right because that is less than 1.  is there a thickness to the cake and we need to find surface area?