Question 1142827
<br><pre>
Area = (pi)(r^2)  formula for area of a circle
     = (pi)((P/2)^2)  the radius is half the diameter, which is P
     = (pi)(P^2/4)  simplify
     = (pi)(2)  it is given that P^2/4 = 2
     = 2pi</pre><br>