Answer:
A. 1520.5 cm^2
Step-by-step explanation:
The area of a circle can be found using the following equation:
[tex]a=\pi r^2[/tex]
In this problem, the radius (from the center of the circle to the circumference of the circle) is 22 centimeters. Therefore, we can substitute 22 cm in for r.
r=22 cm
[tex]a=\pi *22 cm^2[/tex]
First, evaluate the exponent.
22 cm ^2= 22 cm * 22 cm= 484 cm^2
[tex]a=\pi *484cm^2[/tex]
Multiply pi and 484
[tex]a=1520.53084 cm^2[/tex]
Round to the nearest tenth. The 3 in the hundredth place tell us to leave the 5 in the tenth place.
[tex]a= 1520.5 cm^2[/tex]
The area of the circle is 1520.5 square centimeters and A is correct.
