1. The document contains a flowchart for calculating the perimeter and/or area of different shapes including square, rectangle, parallelogram, triangle, circle, cube, sphere, cylinder, cone, and torus.
2. It lists the formulas for calculating the perimeter and area of each shape and provides the steps and logic to output the calculated perimeter or area based on the user's selection of shape.
3. The flowchart allows a user to select a shape case, then select whether to calculate the perimeter or area, before using the appropriate formula and outputting the result.