SOLUTION: Solve the equation. A = pi r^2 for r. Find the radius r of the drum. Round to the nearest tenth. A = 153.9"^2

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Question 426437: Solve the equation.
A = pi r^2 for r. Find the radius r of the drum. Round to the nearest tenth.
A = 153.9"^2

Found 2 solutions by Alan3354, edjones:
Answer by Alan3354(69443)   (Show Source): You can put this solution on YOUR website!

r =~ 6.999 in --> 7.0"

Answer by edjones(8007)   (Show Source): You can put this solution on YOUR website!
pi*r^2=153.9
r^2=153.9/pi
=49.0
r=7
.
Ed

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