GRE Problem Solving Question 340
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Source: 150math
The area of circle W is 16*π and the area of circle Z is 4*π. What is the ratio of the circumference of W to the circumference of Z ?
- A 2 to 1
- B 4 to 1
- C 8 to 1
- D 16 to 1
- E 32 to 1