The answer is 9, hope this helps
Answer:
16pi
Step-by-step explanation:
144pi is the area of the whole circle
(360 - 320)/360 = 1/9
144*1/9=16
Your answer is 25% because a change from 16 to 20 represents a positive change (increase) of 25%
2/3 because if you reduce 2/6 it equals 1/3
