Question

A=4ℼR2 solve for R SHOW ALL STEPSSSSSSSSSSSSS

Answer 1

Given problem;

  A  = 4 π R²

  To solve for R, we have to make it the subject of the expression.

Since

      A  = 4 π R² , follow these steps to find R;

    Multiply both sides by $\frac{1}{4\pi }$  

 A x $\frac{1}{4\pi }$  =  $\frac{1}{4\pi }$ x 4 π R²

          $\frac{A}{4\pi }$   = R²

Then find the square root of both sides

        √R²  = $\sqrt{\frac{A}{4\pi } }$  

            R  = $\sqrt{\frac{A}{4\pi } }$

The solution is $\sqrt{\frac{A}{4\pi } }$