Respuesta :

Answer:

254.34

Step-by-step explanation:

You first have to know the formula which is

[tex]c = \pi \: {r}^{2} [/tex]

You multiply 9 by 9 which gives you 81.

[tex]c = \pi \times 81[/tex]

pi equals 3.14

so 3.14 × 81 = 254.34

Answer:

56.52

Step-by-step explanation:

i did the iready lol