A cylinder
A cylinder is a long round object with flat circular ends.
The object described is a cylinder, specifically a right circular cylinder. It is a round solid with flat circular ends.
Cylinder
A round object with flat, circular ends is a cylinder. It is shaped like a can of vegetables.
A cylinder
As it ends in 8, it is rounded up to 6130.
As it ends with a 3, it is rounded down to 550.
540
It ends in 3, so it is rounded down to 3780.
It ends in a 4, so it is rounded down to 40.
It ends in 8, so it is rounded up to 20.
It ends in 2, so it is rounded down to 755,080.