Answer:
A= 12.55363262
Step-by-step explanation:
C=2πr
12.56=2πr
12.56=6.283185307r
12.56 ÷6.283185307 = 6.283185307r ÷6.283185307
1.998986085 = r
A=πr^2
A=π(1.998986085)^2
