Answer:
Step-by-step explanation:
A = 1/4 pie d2
= 1/4(22/7)(12)2
= 1/4(22/7)144
= 113.1
72π
A = 2πr^2
2π (6)(6) = 72π
idk
A
(x-3)^2+(y+2)^2=16
center (h,k) radius r
(x-h)^2+(y-k)^2=r^2