1.

The diameters of given circles are in the ratio 12 : 5 and the sum of their area is equal to the area of a circle of diameter 65 cm. What are their radii?

A. 12 cm and 5 cm
B. 24 cm and 10 cm
C. 60 cm and 25 cm
D. 30 cm and 12.5 cm
Answer» E.


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