SOLUTION: The area of a circle is 30in2. If you triple the circle’s radius, what will its new area be?

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Question 319760: The area of a circle is 30in2. If you triple the circle’s radius, what will its new area be?
Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
sqrt(30/pi)=r the radius
r=3.09
Bigger circle radius = 9.27
Area = pi*(9.27)^2
Area = 270 sq. cm