Answer:
15
Step-by-step explanation:
The formula for the area of a cylinder is [tex]A=\pi r^{2}h[/tex] where h is height and r is radius. This is because we are finding the area of a circle, then multiplying by the height.
We solve:
[tex]\frac{A}{h} = \pi r^{2}[/tex]
[tex]\frac{A}{h}=\pi 81[/tex]
So A/h is approximately 254.
The area is 3817, so 3817/h=254, and 3817=254h and finally, 3817/254=h. This leaves us with slightly over 15 because we estimated pi. The answer is 15.