A circle is the set of all points in a plane at a fixed distance, called the radius, from a given point, the centre. Here you can calculate the area, diameter, circumference of a circle and also area of a sector.
        
            Section or Ratio Formula.	
            
                
                    
                        Section or Ratio Externally 
                            (mx2 - nx1m - n ,  my2 - ny1m - n)
                             
                            Section or Ratio Internally 
                            (mx2 - nx1m - n ,  my2 - ny1m - n) | 
                    
                
            
            This tool will help you dynamically to calculate the Analytical Geometry. Calculating Analytical is made easier.