Calculation of the area, the cost of materials and work. Stretch ceiling.
You can download the paid version here: https://play.google.com/store/apps/developer?id=%D0%A2%D0%B8%D1%82%D0%BE%D0%B2+%D0% 9D% D0% B8% D0% BA% D0% BE% D0% BB% D0% B0% D0% B9
The program allows you to calculate the area, perimeter, quantity and cost of materials, including for a stretch ceiling. To do this, you must perform a graphical construction of the contour of the room with measurements of the sides and diagonals.
YouTube videos: https://www.youtube.com/playlist?list=UUG2mGIRwgm26IcdC2-7_sPA