Step 1. The Area A of a circles is given as where r is the radius and d is the diameter. Also diameter
Step 2. Then
Step 3. Solving the equation in Step 2 leads to the following steps
Divide by to both sides of the equation
Take the square root to both sides of the equation
and
Step 4. ANSWER: Radius is and diameter is .
I hope the above steps were helpful.
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