Answer:
Area, [tex]A=(81\pi )\ cm^2[/tex]
Step-by-step explanation:
Given that,
The diameter of the circle, d = 18 cm
The radius of a circle is half of its diameter, r = 9 cm
The formula to find the area of a circle is given by :
[tex]A=\pi r^2[/tex]
When r = 9 cm
[tex]A=\pi (9\ cm)^2[/tex]
[tex]A=(81\pi )\ cm^2[/tex]
So, the area of the circle is [tex](81\pi )\ cm^2[/tex]. Hence, this is the required solution.
