Answer:
a circle with a circumference of 34π
Explanation:
The circumference is given by ...
C = 2πr
so the circle with a radius of 16 has a circumference of ...
C = 2π·16 = 32π
The area is proportional to the square of the circumference, so the circle with a larger circumference will have a larger area.
The circle with the circumference of 34π has the largest area.