A typical circle has an infinite number of diameters. Each diameter is a line segment that passes through the center of the circle and has endpoints on the circumference.
Examples of a radius in math include the line segment from the center to a point on a circle, the distance from the center to the edge of a sphere, or the distance from the center to a point on a cone's base. Non-examples could be any line that doesn't go from the center of a circle to its edge or any measurement that doesn't start at the center of a sphere and reach its surface.
The term "radius" comes from Latin. It originally referred to a spoke of a wheel or the ray of light, and then later evolved to represent a line segment connecting the center of a circle to a point on its circumference.
A segment of the equator is a portion of the Earth's surface that lies along the imaginary line that divides the Earth into the Northern and Southern Hemispheres. This segment is a circle with a radius equal to the Earth's radius and measures 1/360th of the Earth's circumference.
Technically, in geometry, there is no such thing. By definition, a line is infinite. A "line segment" is a finite portion of a line. In everyday speech, people might sometimes refer to a line segment as a finite line. But if you said this on a math test, you would fail the test.
Such a line segment would be a radius of the circle.
The line segment is a radius.
The segment you describe is the radius of the circle.
diameter
radius
The radius goes from the center out to the edge of the circle.
A line segment with the center of a circle as one endpoint and the other endpoint on the circumference of the circle is a rdius of that circle.
A radius.
Only one endpoint? if two, it's a diameter...
If it connects the center of the circle to the edge, it is the radius. If it is a straight line that connects the edges of a circle through the center, it is the diameter.
A radius of a circle is a line segment joining the center of the circle to a point on the circle. All such segments have the same length, and this length also called the radius of the circle.
A line segment drawn through the centre of a circle and having endpoints on the circumference of that circle is called the diameter. Notably, a line segement with one endpoint at the centre of the circle and one anywhere on the circumference of the circle is called the radius, and is exactly half the length of the diameter.