Answer:
A. 1520.5 cm^2
Step-by-step explanation:
The area of a circle can be found using the following equation:
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
First, evaluate the exponent.
22 cm ^2= 22 cm * 22 cm= 484 cm^2
Multiply pi and 484
Round to the nearest tenth. The 3 in the hundredth place tell us to leave the 5 in the tenth place.
The area of the circle is 1520.5 square centimeters and A is correct.