Answer:
[tex]A=6.36\times 10^5\ m^2[/tex]
Explanation:
It is given that,
Radius of the circle, [tex]r=4.5\times 10^4\ cm=4.5\times 10^2\ m[/tex]
The area of the circle is given by :
[tex]A=\pi r^2[/tex]
[tex]A=\pi (4.5\times 10^2\ m)^2[/tex]
[tex]A=636172.51\ m^2[/tex]
or
[tex]A=6.36\times 10^5\ m^2[/tex]
As there is no uncertainty given in the radius of the circle. So, the area of the circle is [tex]6.36\times 10^5\ m^2[/tex]. Hence, this is the required solution.