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If the Radius of Circle B Is Twice the Radius ∞\infty

Question 49

Multiple Choice

If the radius of circle B is twice the radius of circle A, and the area of a circle is proportional to the radius squared (A ∞\infty r2) , then the ratio of the area of circle B to that of circle A is:


A) 4
B) 0.5
C) 0.25
D) 2
E) 1.414

Correct Answer:

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