The mathematical constant ПЂ is widely used in many formulas in mathematics, engineering, science and architecture, and construction. Rearranging the above formula, we can solve it for the circumference and get the formula everyone remembers from school: If we divide the circumference of any circle by its diameter D, we get the number 3.14159265359вЂ¦ This number is the most important mathematical constant called ПЂ: The circumference C of a circle is the length of the perimeter of a circle, that is, the length of the circle or the distance around the circle. To be more exact, a circle is a line or a closed curve and in strict language, the circle is only the line that encloses the figure called a disk in American English or disc in British English. Any diameter divides the circle (or rather the disk) into two equal halves. The diameter equals twice the radius of the circle. In more exact words, it is the segment of a straight line that passes through the center of the circle and ends where it touches two points on the circle. The diameter of a circle is the distance across the circle. In some metric spaces, for example in the taxicab or ChebyshevвЂ™s spaces the circles look rather square. However, a circle looks round only in Euclidean geometry. We used to view a circle as a round line or figure.

The distance from any point of the circle to its center is called the radius. Coplanar points are points located in a plane.

In other words, a circle is a locus of coplanar points equidistant from a certain point called the center. In geometry, a circle is a set of all points in a plane that have the same distance to a point called the center of the circle. Circles in Agriculture Definitions and Formulas

Area of a circle calculator