This is a practical building calculation APP that can easily cope with the calculation needs in various building scenarios. Whether it is the volume of a truncated cone-shaped building component or the spatial volume of a wall, it can be calculated quickly and accurately. Solving triangle-related parameters is also a piece of cake, helping to solve calculation problems of triangular structures such as roof slopes. At the same time, it can also efficiently calculate data such as the area and perimeter of doors and windows, providing accurate data support for building design, construction budget, material estimation and other links. It is a necessary and convenient calculation tool for construction industry personnel, decoration enthusiasts, etc