The geometrical center of a spherical mirror is called its pole.
Pole:
The geometric centre of the spherical surface of the mirror is called the pole of the mirror.
Hence, the given statement is true.
Pole refers to the geometric centre of the aperture of a spherical mirror.
The angle which the periphery of the spherical mirror subtends at the center of curvature is called
The geometric center of a spherical mirror is called