Answer:
[tex]A=28.26\\A=9\pi[/tex]
Step-by-step explanation:
Use the formula:
[tex]A=\pi r^2[/tex]
Insert values
[tex]A=3.14 *3^2[/tex]
Simplify exponent
[tex]A=3.14 *9[/tex]
Simplify multiplication
[tex]A=28.26[/tex]
Orrrrr....
[tex]A=\pi *3^2\\A=\pi *9\\A=9\pi[/tex]
