Question

the distance between the pole and centre of curvature is​

Answer 1

Explanation:

(no surprise, I hope) the radius of curvature (r). The distance from the pole to the focal point is called the focal length (f). The focal length of a spherical mirror is then approximately half its radius of curvature.

Answer 2

Answer:

the distance between the pole and centre of curvature is radius of curvature