SOLUTION: If A = 1,386 square centimeters and Pi = 22/7, find r. {{{ A = (Pi)r^2 }}} (Transpose the formula before solving for r.) Pi is the pi sign (pi = 3.14). Please provide all step

Algebra ->  Percentage-and-ratio-word-problems -> SOLUTION: If A = 1,386 square centimeters and Pi = 22/7, find r. {{{ A = (Pi)r^2 }}} (Transpose the formula before solving for r.) Pi is the pi sign (pi = 3.14). Please provide all step      Log On


   

Question 189145: If A = 1,386 square centimeters and Pi = 22/7, find r. +A+=+%28Pi%29r%5E2++
(Transpose the formula before solving for r.)
Pi is the pi sign (pi = 3.14). Please provide all steps for solving this problem.
Thanks,
Blake
Answer by Mathtut(3670) About Me  (Show Source):
You can put this solution on YOUR website!
r%5E2=A%2F%28pi%29
:
r=sqrt%28A%2Fpi%29
:
r=sqrt%281386%2F3.14%29
:
r=sqrt%28441.40%29
:
r=21.01