Answer:
A. 571
Step-by-step explanation:
By adding the radius of both of the inner circles, you can find the radius of the larger circle. (20)
Continue by finding the area of both inner circles using the formula
A= 3.14 * radius².
A= 3.14 * 169 A= 530.66 (Area of circle with 13m radius)
A= 3.14 * 49 A= 153.86 (Area of circle with 7m radius)
Add those together to find the combined area (Combined area = 684.52)
Find the area of the large circle
A= 3.14 * 400 A= 1256
Subtract the combined area from the large circle to find the area of the shaded region
1256 - 684.52 = 571.48
