<PRE><B>Question 1115933</B>
The radius of circle B is 2.5 times the radius of circle A. If the area of circle A is 8 square yards what is the area of circle B? 
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Area of circle A = pi*r^2 = 8
So radius = sqrt[8/pi]
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Radius of circle B = 2.5*sqrt[8/pi]
Area of circle B = pi[2.5*sqrt[8/pi]]^2= pi[6.25*8/pi] = 6.25*8 = 50 sq yrds
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Cheers,
Stan H.
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