What is the first step for solve for r in A=πr^2

Question

I need to know what the first step is to solve for r in a=πr²

Answer 1

Hi Aimee,

The first step would be to divide both sides by ¶ :

a = ¶r²

a = ¶ r²

¶ ¶

Then:

a = r²

¶

Also, to solve for r , you would take the square root of both sides of the equation.