If the Radius of Circle B Is Twice the Radius

question 35

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 ∝ 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