Two circles share a center at point C, as shown above. Segment AC is broken up into two shorter segments, AB and BC,

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Manhattan Prep
circle areas.png
Two circles share a center at point C, as shown above. Segment Ac is broken up into two shorter segments, AB and BC, with dimensions shown. What is the ratio of the area of the large circle to the area of the small circle?

A. 25/4
B. 5/2
C. 3/2
D. 2/5
E. 4/25

OA A