SOLUTION: I have this problem: The area of a rectangle is (25)(pi^2) cm^2. What is the diameter of a circle that has the same area as the area of the rectangle? My answer was 10pi. The textb

Question 1104854: I have this problem: The area of a rectangle is (25)(pi^2) cm^2. What is the diameter of a circle that has the same area as the area of the rectangle? My answer was 10pi. The textbook's answer was 10sqrtpi. What did I do wrong? Thanks for your time!
Found 2 solutions by josgarithmetic, ikleyn:
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
Area for both the rectangle and the circle:

The circle, area using radius r:

The diameter of the circle is twice r.

Answer by ikleyn(52781) (Show Source): You can put this solution on YOUR website!
.

= = ====> = ====> r = = ====> D= diameter = 2r = .

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