The radius of the circle is the distance between the center of the circle and any point on its circumference. Learn the definition, formulas, examples, and more.

The plural form is radii (pronounced "ray-dee-eye"). In the figure above, drag the orange dot around and see that the radius is always constant at any point on the circle. Sometimes the …

The radius of a circle is defined as a line segment that joins the center to the boundary of a circle. The length of the radius remains the same from the center to any point on the circumference …

The meaning of RADIUS is a line segment extending from the center of a circle or sphere to the circumference or bounding surface. How to use radius in a sentence.

Aug 3, 2023 · The radius of a circle is the distance from the center of the circle to any point on its circumference. It is half the length of the diameter of the circle. Shown below is the radius of …

By definition, a circle is a 2-dimensional shape consisting of all the points lying at the same, fixed distance from a given point. That distance is known as the radius of the circle. Now that we …

Use our calculator to calculate the radius of a circle given a diameter, circumference, or area. See the formulas used to find the radius.

Oct 7, 2025 · The radius of a circle is the distance from the center of the circle to any point on its circumference. The easiest way to find the radius is by dividing the diameter in half.

The radius (plural radii) of a circle is any line segment that has one endpoint on the center of the circle and the other endpoint on the circle's circumference.

Earth radius (denoted as R🜨 or RE) is the distance from the center of Earth to a point on or near its surface. Approximating the figure of Earth by an Earth spheroid (an oblate ellipsoid), the radius …