With Geometry Calculator it is possible to calculate the area of triangles, trapezoids, rectangles, squares, circles and the surface area of cubes, pyramids, prisms, and cylinders, you can use the measurements as "Non specific units" or you have the option of entering a specific unit and have the calculations converted to many other imperial and metric units. The program runs with a 30 day tryout period afterwhich it will run with limited use, registering the program will enable it fully.