Answer:
no solution
Step-by-step explanation:
Answer:
height = 5.4 units
Step-by-step explanation:
r = 4.5/2 = 2.25
B = πr² = 3.14(2.25²) = 15.90
V = 1/3Bh
28.63 =1/3(15.90)h
85.89 = 15.90h
h = 5.40 units
D/2=r
12/2=6
a=pir^2
a=pi6^2
a=36pi
a=113.04
3rd option again