Answer:
As the shape forms a rectangle and line segment AB and line segment CD are parallel, you can tell that length of both line segments/sides are equal.
Step-by-step explanation:
Since the answer itself requires an explanation, I added the explanation in the answer area.
Hope that helps! Have a great day!
56-28d
4578.12 ft³
Volume of a cylinder is: V = πr²h
Insert the information into the formula: V = (3.14)(81)(18) = 4578.12