SOLUTION: A = {{{PI}}} {{{ (R-r/2)^2 }}}, Make R the subject of the formula

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Question 824619: A = PI +%28R-r%2F2%29%5E2+, Make R the subject of the formula
Answer by josgarithmetic(39618) About Me  (Show Source):
You can put this solution on YOUR website!
Do you mean , solve for R ?

Multiplicative Inverse of pi;
Exponentiate members to the half-power;
Additive Inverse of R;-------------(this was a mistake. See below for better response)
Multiplicative Inverse of -1.

Those are the justification for the sequence of steps to solve. Can you use those in order to give the steps?


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Here, is better. You want R as the "subject" for the given equation of A. Again, I will give only the laws which you can use, but not the actual mathematical/algebraic steps.

Multiplicative Inverse of pi;
Exponentiate to the half power, both sides;
Additive Inverse of r%2F2;
You should supply the steps yourself, but should then have the formula for R as a result.