# Difference between revisions of "Radius Command"

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; Radius[Circle]: Returns the radius of the circle. | ; Radius[Circle]: Returns the radius of the circle. |

## Revision as of 21:23, 9 March 2013

- Radius[Circle]
- Returns the radius of the circle.

**Example:**

Returns the radius of a circle c (e.g. c:(x - 1)² + (y - 1)² = 9)

`Radius[c]`

yields a = 3**Example:**

Returns the radius of a circle formula

`Radius[(x - 2)² + (y - 2)² = 16]`

yields a = 4