The app can be used to roughly measure the area and perimeter of a figure, as well as the length of a curve on a flat surface. The area of ​​the figure must be bounded by a closed curve. The dimensions of the shape are scaled. You can transfer to paper, for example, the boundaries of a land plot, set the scale and calculate its area and perimeter. Shapes should be drawn in a dark color on a white background (ballpoint pen, pencil or printer). You can first take a snapshot of the figure and save