In the field of architecture, a great number of problems requires the use of the circle, polygon, and other geometric figures. The most important of these are the following:

The problem of the determination of the parameters of a geometric figure, in particular, the radius of a circle and the area of a polygon. The problem of the determination of the parameters of an arc or an arc segment. The problem of the determination of the parameters of an arch, arced, vaulted, or other similar structure.

The solution of the first of these problems is the application of the circle, which is a mathematical circle. This application calculates the radius of a circle in two dimensions: the width and the height of the structure. The application allows you to choose between the following options:

Measure in meters or centimeters. Choose the height of the arch in meters, centimeters, millimeters, or inches.