- #1

rad10k

- 61

- 0

## Homework Statement

I am trying to rearrange formula to make r^2 the subject.

## Homework Equations

0.05=(2.88/4*1*0.018)(0.05^2-r^2)

## The Attempt at a Solution

I tried to rearrage as :

0.05^2+0.05/2.88/4*0.018 then sqr root of the answer but I don't think it is correct

Please help