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April 19, 2015

April 19, 2015

Posted by **Johnny** on Wednesday, September 8, 2010 at 1:31am.

a)7.7%

b)50%

c)100%

d)75%

e)22%

- Math -
**drwls**, Wednesday, September 8, 2010 at 6:26amradius is proportional the square root of area.

R2/R1 = sqrt(A2/A1)

relaive change = (R2 - R1)/R1

= (R2/R1) - 1

sqrt(1.50) - 1 = 0.2247 = 22.47%

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