If the ratio of the diameters of two spheres is 3: 5, then what is the ratio of their surface areas ?

If the ratio of the diameters of two spheres is 3: 5, then what is

1.	If the ratio of the diameters of two spheres is 3: 5, then what is the ratio of their surface areas ?
A.	9 : 25
B.	9 : 10
C.	3 : 5
D.	27 : 125
Answer» B. 9 : 10

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If the ratio of the diameters of two spheres is 3: 5, then what is the ratio of their surface areas ?

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