Answer:
[tex]\frac{121}{4} \pi cm^2[/tex] or [tex]30.25\pi cm^2[/tex]
Step-by-step explanation:
1. Convert diameter to radius.
[tex]r=\frac{1}{2} d[/tex]
[tex]r=\frac{1}{2} (11)[/tex]
[tex]r=\frac{11}{2}[/tex]
2. Find area of a circle.
[tex]A=r^2\pi[/tex]
[tex]A=(\frac{11}{2})^2\pi[/tex]
[tex]A=\frac{121}{4} \pi=30.25\pi[/tex]
(If π ≈ 3.14, multiply 3.14 to decimal)
