Answer:
A= pi x r^2
r= 1\2D
r=1\2 x12
r=6
A=pi x 6^2
A=36pi or 36 x 22\7= 113
Step-by-step explanation:
A≈113.1
i think this is it idk
9 hours
36 degrees total /4 degrees per hour = 9 hours
9
he had 18 so he divide them by to so 18/2 9 so there 9 in each bunch
