Answer :
since [tex]area = 2 \pi r[/tex],
[tex]d=19[/tex]
[tex]d=2r[/tex]
[tex]A = 19 \pi [/tex]
[tex]a = 59.66[/tex]
[tex]d=19[/tex]
[tex]d=2r[/tex]
[tex]A = 19 \pi [/tex]
[tex]a = 59.66[/tex]