Which of the following circles has the greatest circumference? Use 3.14 for pi.

A. A circle with radius 4 meter
B. A circle with diameter 7 meters
C. A circle with circumference 24 meters
D. A circle with circumference 5 pi.

2 answers

pls help
A. C = 2πr = 8π
B. C = πd = 7π
C. C = 24 = 7.6π
D. C = 5π

so, ...