The ratio of radius of a circle and the side of a square is 2 : 13. Find the ratio of their areas:
Pick.
A) 2 : 1
B) 4 : 7
C) 8 : 77
D) 4 : 169
E) none

Rationale: radius / side = 2 / 13 â ‡ ’ area of circle / area of square = 4 / 169 answer : d
Answer: D