This application is very good tool for kids to make a cone or frustum cone by using flat paper sheet.
Also a very good tool for student , engineer and technical people to get all information for this cone to make it by using flat steel , aluminum or copper sheet...etc
By this app you can get :-
1- Cone angle as the diameter and height are given.
2- Detailed drawing for the flat sheet needed to make this cone .
3- The area of this flat sheet