Which of the following is true about the diameter of a sphere?(1 point)

Responses

The diameter is 2.5 times the length of the radius.
The diameter is 2.5 times the length of the radius.

The diameter is not a chord.
The diameter is not a chord.

The diameter of a sphere passes through the center of the circle.
The diameter of a sphere passes through the center of the circle.

The diameter is the shortest length on a sphere.

1 answer

Let's evaluate the statements about the diameter of a sphere:

  1. The diameter is 2.5 times the length of the radius.
    This statement is false. The diameter of a sphere (or circle) is actually twice the length of the radius. The correct relationship is \( d = 2r \), where \( d \) is the diameter and \( r \) is the radius.

  2. The diameter is not a chord.
    This statement is false. The diameter is actually a special type of chord that passes through both endpoints on the sphere and the center.

  3. The diameter of a sphere passes through the center of the circle.
    This statement is true. By definition, the diameter of a sphere passes through its center and connects two points on its surface.

  4. The diameter is the shortest length on a sphere.
    This statement is false. The shortest distance between two points on the surface of a sphere is called a geodesic, typically following a great circle path, not the diameter itself.

Based on this evaluation, the only true statement among the options provided is:

The diameter of a sphere passes through the center of the circle.