Question

Rearrange this formula for the area of a circle to solve for r in terms of A.

The formula for the area of a circle, A, is given by
What is the new formula?

Answer 1

`\sqrt{ (a)/(\pi) }`

Step-by-step explanation:

area of a circle equation:

• 
  `a = \pi r^(2)`
• you divide by pi
• 
  `(a)/(\pi) = r^(2)`
• you do the square root it
• 
  `\sqrt{ (a)/(\pi) }`