The center of a sphere is a line segment from the center point to the surface of the sphere. a fixed point equidistant from all points on the surface of the sphere. a three-dimensional circle in which all points are equidistant from a fixed point. the same as the base of the sphere.

A fixed point equidistant from all points on the surface of the sphere

Step-by-step explanation:

we know that

The sphere is the set of all points in the space equidistant from a fixed point called the center of the sphere

therefore

The center of a sphere is a fixed point equidistant from all points on the surface of the sphere

d

step-by-step explanation:

step-by-step explanation:

use pothagarean therom

a^2+b^2=c^2 so first ac

acm is a right triangle because c= 90°

and am (the hypotenuse or c) =16+9 =25

but there is not enough info we need another angle or side length