If the area of a circle decreases by 30%, then the radius of a circle decreases by  Answers:
A) 20%
B) 16%
C) 36%
D) 64%
E) None of these
If area of a circle decreased by x % then the radius of a circle decreases by   (100−10√100−x)%=(100−10√100−30)%   = (100−10√70)%   = 100 - 84= 
<gadget id="calculator">100 - 84</gadget>
<output>16</output>
16%   Answer 16%
<result>B</result>
If the area of a circle decreases by 30%, then the radius of a circle decreases by