A Cylinder is a three-dimensional geometric figure that has two congruent and parallel bases.
Right Cylinder: A right cylinder is a cylinder in which the centers of the bases are aligned directly one above the other.
Right Circular Cylinder: When the base of a right cylinder is a circle, it is called a right circular cylinder.
Oblique Cylinder: When the centers of the bases of a cylinder are not aligned directly one above the other, it is called an oblique cylinder.
A. its altitude
B. its base
C. its surface area
D. none of these
Correct Answer: A
Step 1: The altitude of a right cylinder coincides with its axis of rotation.