Question

The diameter of a sphere is

a chord that passes through the center of the sphere.
a fixed point equidistant from all points on the surface of the sphere.
a line segment from the center point to a point on the sphere.
a three-dimensional circle in which all points are equidistant from a fixed point.

Answer 1

A

Step-by-step explanation:

Answer 2

A chord that passes through the center of the sphere.

Step-by-step explanation:

In plane geometry, a chord is the line segment joining two points on a curve. The term is often used to describe a line segment whose ends lie on a circle. A chord that passes directly through the center of the sphere and to the other end is determined to be the diameter.