ANSWER:
The area of circle is 572.5566 in^2
STEP-BY-STEP EXPLANATION:
We have that the area of the circle is the following
[tex]A=\pi\cdot r^2[/tex]Where r is the radius, and the radius corresponds to half the value of the diameter, replacing and calculating the area we have left:
[tex]\begin{gathered} d=\frac{27}{2}=13.5 \\ A=3.1416\cdot13.5^2 \\ A=572.5566 \end{gathered}[/tex]