Circumference of a circle

Features Circumference of a circle

To calculate the circumference of a circle, all you need to know is:- diameter,- radius,- area of ​​a circle,- the diagonal of the inscribed rectangle,- the side of the circumscribed square,- sides and area of an inscribed triangle,are the area and half-perimeter of the circumscribed triangle,side of an inscribed regular polygon.The purpose of this application is the education of cognitive interest in mathematics.