# How to find the radius of a circle with the diameter?

The circle is a two-dimensional figure defined as a collection of points, on a two-dimensional plane, which are equidistant from the center point 'O'.

## Answer: Length of radius = (length of diameter)/2

Let's calculate the radius of a circle when the diameter of a circle is given.

**Explanation:**

The distance from the center point to any endpoint on the circle is called the radius of a circle. It is denoted by 'r.'

The radius of a circle can be found when the diameter is given by the formula: Radius = Diameter / 2

If diameter is 10cm then the radius is 10/2 = 5cm