A and B are two circles. The radius of A is twice as large as the radius of B. What is the ratio between the areas of the circles?  Choose the correct choice from the following:
A) 1:8.  B) 1:2.  C) 1:4.  D) 1:16.  E) 1:6.
Given : The radius of A is twice as large as the radius of B. =&gt; R(a) = 2*R(b). The radius are in ratio of 1:2 thus the area will be in the ratio of square of radius. 1:4. Hence 1:4..
<result>C</result>
A and B are two circles. The radius of A is twice as large as the radius of B. What is the ratio between the areas of the circles?