Answer and Step-by-step explanation:
The area of a circle:
[tex]A = \pi r^{2}[/tex]
d = 2r
Plug in the values.
5.
A = [tex]\pi 7^{2}[/tex]
A = 49[tex]\pi[/tex]
7.
58 = 2r
r = 29
[tex]A = \pi 29^{2}[/tex]
A = [tex]841\pi[/tex]
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