SOLUTION: Express the length of the perimeter of a circle in terms of the area of the circle. Use A for the area in your answer. Perimeter = ? Thanks so much for the help!

Question 255740: Express the length of the perimeter of a circle in terms of the area of the circle. Use A for the area in your answer. Perimeter = ?
Thanks so much for the help!
Answer by drk(1908) (Show Source): You can put this solution on YOUR website!
The perimeter of a circle, also circumference is
(i)
The area of a circle is
(ii)
solve the area formula for r and we get
(iii)
(iv)
substitute (iv) into (i) to get

which is simplified to

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