The answer is 4a - 12 so b.
The area would be 19.625- inches
A = pi times radius squared (radius is half the 16 inch diameter so 8 inches)
A = 3.14 x r^2
A = 3.14 x 8^2
A - 200.96 sq inches
V r s e are the angles i think I have not done this yet. sorry but I think so it looks that way
