Circumference of a circle
Circle – is a geometric figure where points on the plane have a distance to a certain point no more than given. Its circumference represents a closed flat curve, where all points are equidistant from the center. 
Often the circle is called the part of the plane that is bounded by the circumference.
For absolutely any circle, its circumference and diameter are the same. Such a ratio is denoted by the transcendental number π = 3.1415Perimeter, like the circumference, has the same magnitude in a circle. Our calculator will help you calculate the perimeter of this figure using the radius value. All you need to do is enter the radius of the circle you specified. The circumference of a circle is equal to two pi multiplied by the radius.  - is a formula that helps calculate the exact perimeter of a circle.
|