radius simple definition
A radius is a straight line that extends from the center of a circle or sphere to the circumference or the surface of the object. It is also the distance from the center to any point on the circumference or surface.
The radius is a measurement that refers to the distance from the center of a circle or sphere to any point on its perimeter or surface. It is the distance between the center and the outer edge of the circle or sphere.
The simple definition of the term "radius" is the distance from the center of a circle or sphere to any point on its circumference. In other words, it is the straight line segment connecting the center of the circle or sphere to any point on its edge.
To find the radius of a circle or sphere, you need to know either the diameter or the circumference. Here's how you can calculate the radius based on these measurements:
1. If you know the diameter (the distance across the center of the circle or sphere), you can divide it by 2 to get the radius. The formula for this is:
Radius = Diameter / 2
2. If you know the circumference (the distance around the circle or sphere), you can use the following formula:
Radius = Circumference / (2 * π)
Note: π (pi) is a mathematical constant approximately equal to 3.14159.
By using these formulas, you can easily determine the radius of a circle or sphere based on the given measurements.